View source for Astronomy:ISRO

{{Short description|India's national space agency}}
{{Use Indian English|date=October 2022}}
{{Infobox space agency
| name         = Indian Space Research Organisation
| native_name  = ''Bhāratīya Antarikṣa Anusandhān Saṅgaṭhan''
| logo         = Indian Space Research Organisation Logo.svg
| logo_caption = Official logo
| acronym      = ISRO
| jurisdiction = [[Astronomy:Department of Space|Department of Space]]
| owner        = Government of India
| established  = {{Start date and age|df=y|1969|8|15}}
| preceding1   = [[Organization:Indian National Committee for Space Research|INCOSPAR]] (1962–1969)
| headquarters = Bangalore, Karnataka, India
| coordinates  = {{Wikidatacoord|Q229058|type:landmark_region:IN-KA|display=inline title}}
| employees    = 19,247 (as on 1 March 2022)<ref>{{Cite web|url=https://www.isro.gov.in/media_isro/pdf/HumanResource.pdf|title=Human Resources - DOS Annual Report 2022-2023|access-date=2024-01-04}}</ref>
| spaceports   = {{hlist|[[Astronomy:Satish Dhawan Space Centre|SDSC]]|[[Astronomy:Thumba Equatorial Rocket Launching Station|TERLS]]}}
| leader_title = [[Astronomy:Chairman of the Indian Space Research Organisation|Chairman]]
| leader_name  = Sreedhara Somanath
| website      = {{official URL}}
}}

The '''Indian Space Research Organisation''' ('''ISRO''' {{IPAc-en|ˈ|ɪ|s|r|oʊ}}){{efn|[[ISO 15919]]: {{transliteration|hi|ISO|Bhāratīya Antarikṣa Anusandhān Saṅgaṭhan}}}} is the national [[Astronomy:List of government space agencies|space agency]] of India. It operates as the primary research and development arm of the [[Astronomy:Department of Space|Department of Space]] (DoS), which is directly overseen by the Prime Minister of India while the Chairman of ISRO also acts as the executive of DoS. ISRO is primarily responsible for performing tasks related to space-based operations, [[Astronomy:Space exploration|space exploration]], international space cooperation and the development of related technologies.<ref>{{Cite web |title=Indian Space Research Organisation |url=https://www.isro.gov.in/profile.html |access-date=2023-08-22 |website=www.isro.gov.in |archive-date=5 November 2023 |archive-url=https://web.archive.org/web/20231105193909/https://www.isro.gov.in/profile.html |url-status=live }}</ref> ISRO is one of the six government space agencies in the world that possesses full launch capabilities, can deploy [[Physics:Cryogenic rocket engine|cryogenic engines]], can launch [[Astronomy:List of Solar System probes|extraterrestrial missions]] and operate a large fleet of [[Astronomy:Satellite|artificial satellites]].<ref>{{Cite news |last=Pulakkat |first=Hari |date=2014-01-09 |title=How ISRO developed the indigenous cryogenic engine |work=The Economic Times |url=https://economictimes.indiatimes.com/news/politics-and-nation/how-isro-developed-the-indigenous-cryogenic-engine/articleshow/28575364.cms?from=mdr |access-date=2023-08-22 |issn=0013-0389 |archive-date=5 November 2023 |archive-url=https://web.archive.org/web/20231105193907/https://economictimes.indiatimes.com/news/politics-and-nation/how-isro-developed-the-indigenous-cryogenic-engine/articleshow/28575364.cms?from=mdr |url-status=live }}</ref>{{sfn|Harvey|Smid|Pirard|2011|pp=144–}}{{efn|CNSA (China), [[Organization:European Space Agency|ESA]] (most of Europe), ISRO, (India), [[Organization:JAXA|JAXA]] (Japan), [[Organization:NASA|NASA]] (United States) and [[Company:Roscosmos|Roscosmos]] (Russia) are space agencies with full launch capabilities.}} ISRO is one of the four government space agencies to have [[Engineering:Soft landing|soft landing]] (uncrewed) capabilities.<ref>{{Cite news |last=Mashal |first=Mujib |date=2023-08-24 |title=India's Moon Landing Offers Blueprint For Other Countries Dreaming Big |language=en-US |work=The New York Times |url=https://www.nytimes.com/2023/08/24/world/asia/india-chandrayaan-3-moon-landing-space.html |access-date=2023-08-27 |issn=0362-4331 |archive-date=2 October 2023 |archive-url=https://web.archive.org/web/20231002162641/https://www.nytimes.com/2023/08/24/world/asia/india-chandrayaan-3-moon-landing-space.html |url-status=live }}</ref>{{efn|The Soviet Union ([[Astronomy:Interkosmos|Interkosmos]]), The United States (NASA), China (CNSA) and India (ISRO) are the only four nations to have successfully achieved [[Engineering:Soft landing|soft landing]].}}

ISRO was previously known as the [[Organization:Indian National Committee for Space Research|Indian National Committee for Space Research]] (INCOSPAR), set up under Jawaharlal Nehru on the suggestions of [[Biography:Vikram Sarabhai|Dr. Vikram Sarabhai]] in 1962 recognising the need for space research. INCOSPAR grew and became ISRO in 1969, within the Department of Atomic Energy (DAE).<ref>{{Cite web |date=2019-08-29 |title=Government of India Atomic Energy Commission {{!}} Department of Atomic Energy |url=http://dae.nic.in/?q=node/394 |access-date=2023-08-22 |archive-url=https://web.archive.org/web/20190829222918/http://dae.nic.in/?q=node/394 |archive-date=29 August 2019}}</ref> In 1972, the government of India set up a Space Commission and the DoS, bringing ISRO under it. The establishment of ISRO thus institutionalised space research activities in India.{{sfn|Bhargava|Chakrabarti|2003|pp=39}}{{sfn|Sadeh|2013|pp=303-}} It has since been managed by DoS, which also governs various other institutions in India in the domain of astronomy and space technology.<ref name="DOSHQ">{{Cite web |url=https://www.isro.gov.in/about-isro/department-of-space-and-isro-hq |title=Department of Space and ISRO HQ – ISRO |access-date=28 March 2019 |archive-url=https://web.archive.org/web/20190328053630/https://www.isro.gov.in/about-isro/department-of-space-and-isro-hq |archive-date=28 March 2019 |url-status=live}}</ref>

ISRO built India's first satellite, Aryabhata, which was launched by the [[Place:Soviet Union|Soviet]] space agency [[Astronomy:Interkosmos|Interkosmos]] in 1975.<ref name="Aryabhatta">{{cite web |url=https://www.isro.gov.in/Spacecraft/aryabhata-1 |title=Aryabhata – ISRO |website=www.isro.gov.in |access-date=15 August 2018 |archive-url=https://web.archive.org/web/20180815200808/https://www.isro.gov.in/Spacecraft/aryabhata-1 |archive-date=15 August 2018 |url-status=live}}</ref> In 1980, ISRO launched satellite [[Engineering:Rohini (satellite)|RS-1]] onboard [[Astronomy:Satellite Launch Vehicle|SLV-3]], making India the [[Engineering:Timeline of first orbital launches by country|seventh country]] to be capable of undertaking orbital launches. SLV-3 was followed by [[Astronomy:Augmented Satellite Launch Vehicle|ASLV]], which was subsequently succeeded by the development of many [[Engineering:Medium-lift launch vehicle|medium-lift launch vehicle]]s, rocket engines, satellite systems and networks enabling the agency to launch hundreds of domestic and foreign satellites and various deep space missions for space exploration.

ISRO has the world's largest constellation of remote-sensing satellites and operates the [[Earth:GPS-aided GEO augmented navigation|GAGAN]] and [[Astronomy:Indian Regional Navigation Satellite System|IRNSS]] (NavIC) [[Earth:Satellite navigation|satellite navigation]] systems. It has sent [[Astronomy:Chandrayaan programme|three missions]] to the Moon and [[Astronomy:Mars Orbiter Mission|one to Mars]].

ISRO's programmes have played a significant role in the socio-economic development of India and have supported both civilian and military domains in various aspects including disaster management, telemedicine and navigation and reconnaissance missions. ISRO's spin-off technologies also have founded many crucial innovations for India's engineering and medical industries.<ref>{{Cite web |date=2019-06-28 |title=ISRO forms new commercial arm to exploit technology, launch satellites |url=https://www.thehindubusinessline.com/news/science/isro-forms-new-psu-to-commercially-exploit-technology-launch-satellites/article28195144.ece |access-date=2023-08-23 |website=BusinessLine |language=en}}</ref>

== History ==
=== Formative years ===
[[File:TERLS-03.jpg|thumb|An Arcas rocket being loaded into launch tube at Thumba Launching Station. In the early days of ISRO, rocket parts were often transported on bicycles and bullock carts.<ref>{{Cite web |url=https://www.indiatoday.in/fyi/story/india-first-rocket-launched-from-a-church-isro-vssc-nike-apache-15606-2016-06-22 |title=Transported on a bicycle, launched from a church: The fascinating story of India's first rocket launch |date=22 June 2016 |website=India Today |language=en |access-date=12 October 2019 |archive-date=12 October 2019 |archive-url=https://web.archive.org/web/20191012093438/https://www.indiatoday.in/fyi/story/india-first-rocket-launched-from-a-church-isro-vssc-nike-apache-15606-2016-06-22 |url-status=live}}</ref>]]
Modern space research in India can be traced to the 1920s, when scientist S. K. Mitra conducted a series of experiments sounding the [[Astronomy:Ionosphere|ionosphere]] through ground-based radio in [[Place:Kolkata|Kolkata]].{{sfn|Daniel|1992|pp=486}} Later, Indian scientists like C.V. Raman and [[Biography:Meghnad Saha|Meghnad Saha]] contributed to scientific principles applicable in space sciences.{{sfn|Daniel|1992|pp=486}} After 1945, important developments were made in coordinated space research in India{{sfn|Daniel|1992|pp=486}} by two scientists: Vikram Sarabhai, founder of the [[Organization:Physical Research Laboratory|Physical Research Laboratory]] at Ahmedabad, and [[Biography:Homi J. Bhabha|Homi Bhabha]], who established the Tata Institute of Fundamental Research in 1945.{{sfn|Daniel|1992|pp=486}} Initial experiments in space sciences included the study of cosmic radiation, high-altitude and airborne testing, deep underground experimentation at the [[Physics:Particle experiments at Kolar Gold Fields|Kolar mines]]—one of the deepest mining sites in the world—and studies of the upper atmosphere.{{sfn|Daniel|1992|pp=487}} These studies were done at research laboratories, universities, and independent locations.{{sfn|Daniel|1992|pp=487}}{{sfn|Daniel|1992|pp=488}}

In 1950, the Department of Atomic Energy (DAE) was founded with Bhabha as its secretary.{{sfn|Daniel|1992|pp=488}} It provided funding for space research throughout India.{{sfn|Daniel|1992|pp=489}} During this time, tests continued on aspects of [[Physics:Meteorology|meteorology]] and the [[Earth:Earth's magnetic field|Earth's magnetic field]], a topic that had been studied in India since the establishment of the [[Organization:Colaba Observatory|Colaba Observatory]] in 1823. In 1954, the [[Organization:Aryabhatta Research Institute of Observational Sciences|Aryabhatta Research Institute of Observational Sciences]] (ARIES) was established in the foothills of the Himalayas.{{sfn|Daniel|1992|pp=488}} The Rangpur Observatory was set up in 1957 at Osmania University, Hyderabad. Space research was further encouraged by the government of India.{{sfn|Daniel|1992|pp=489}} In 1957, the Soviet Union launched [[Engineering:Sputnik 1|Sputnik 1]] and opened up possibilities for the rest of the world to conduct a space launch.{{sfn|Daniel|1992|pp=489}}

The Indian National Committee for Space Research (INCOSPAR) was set up in 1962 by Prime Minister Jawaharlal Nehru on the suggestion of Dr. Vikram Sarabhai.{{sfn|Sadeh|2013|pp=303-}} Initially there was no dedicated ministry for the space programme and all activities of INCOSPAR relating to space technology continued to function within the DAE.<ref name="DAE">{{Cite web |url=http://www.dae.nic.in/?q=node%2F394 |title=Government of India Atomic Energy Commission &#124; Department of Atomic Energy |access-date=21 September 2019 |archive-url=https://web.archive.org/web/20190829222918/http://dae.nic.in/?q=node%2F394 |archive-date=29 August 2019 |url-status=dead}}</ref>{{sfn|Bhargava|Chakrabarti|2003|pp=39}} IOFS officers were drawn from the Indian Ordnance Factories to harness their knowledge of propellants and advanced light materials used to build rockets.<ref>{{cite web |url=https://www.thehitavada.com/Encyc/2021/9/19/-Success-is-yours-failure-is-mine-makes-one-a-great-leader-Mujumdar.html |title='Success is yours, failure is mine' makes one a great leader: Mujumdar |access-date=6 December 2022 |archive-date=6 December 2022 |archive-url=https://web.archive.org/web/20221206214943/https://www.thehitavada.com/Encyc/2021/9/19/-Success-is-yours-failure-is-mine-makes-one-a-great-leader-Mujumdar.html |url-status=live }}</ref> [[Astronomy:H.G.S. Murthy|H.G.S. Murthy]], an IOFS officer, was appointed the first director of the Thumba Equatorial Rocket Launching Station,<ref>{{Cite web |url=https://www.dnaindia.com/mumbai/report-i-m-proud-that-i-recommended-him-for-isro-ev-chitnis-2109096 |title=I'm proud that I recommended him for ISRO: EV Chitnis |first=Ashwini |last=Pawar |date=29 July 2015 |website=DNA India |access-date=13 July 2021 |archive-date=9 July 2021 |archive-url=https://web.archive.org/web/20210709211836/https://www.dnaindia.com/mumbai/report-i-m-proud-that-i-recommended-him-for-isro-ev-chitnis-2109096 |url-status=live}}</ref> where [[Engineering:Sounding rocket|sounding rocket]]s were fired, marking the start of upper atmospheric research in India.<ref>{{Cite web |url=https://www.isro.gov.in/about-isro |title=About ISRO – ISRO |access-date=28 March 2019 |archive-url=https://web.archive.org/web/20190328065955/https://www.isro.gov.in/about-isro |archive-date=28 March 2019 |url-status=live}}</ref> An indigenous series of sounding rockets named [[Astronomy:Rohini (rocket family)|Rohini]] was subsequently developed and started undergoing launches from 1967 onwards.<ref>{{cite news |last=Chari |first=Sridhar K |title=Sky is not the limit |url=http://www.tribuneindia.com/2006/20060722/saturday/main1.htm |access-date=14 March 2021 |newspaper=The Tribune |date=22 July 2006 |archive-date=19 September 2020 |archive-url=https://web.archive.org/web/20200919142847/https://www.tribuneindia.com/2006/20060722/saturday/main1.htm |url-status=live}}</ref> Waman Dattatreya Patwardhan, another IOFS officer, developed the propellant for the rockets.

=== 1970s and 1989s ===
Under the government of Indira Gandhi, INCOSPAR was superseded by ISRO. Later in 1972, a space commission and Department of Space (DoS) were set up to oversee space technology development in India specifically. ISRO was brought under DoS, institutionalising space research in India and forging the Indian space programme into its existing form.{{sfn|Bhargava|Chakrabarti|2003|pp=39}}<ref name="DOSHQ" /> India joined the Soviet [[Astronomy:Interkosmos|Interkosmos]] programme for space cooperation<ref name="Sheehan">{{cite book |last=Sheehan |first=Michael |title=The international politics of space |year=2007 |publisher=Routledge |isbn=978-0-415-39917-3 |url=https://books.google.com/books?id=V-Z0kfqPHy8C |location=London |pages=59–61 |access-date=14 March 2021 |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413211452/https://books.google.com/books?id=V-Z0kfqPHy8C |url-status=live}}</ref> and got its first satellite Aryabhatta in orbit through a Soviet rocket.<ref name="Aryabhatta" />

Efforts to develop an orbital launch vehicle began after mastering sounding rocket technology. The concept was to develop a launcher capable of providing sufficient velocity for a mass of {{cvt|35|kg}} to enter [[Astronomy:Low Earth orbit|low Earth orbit]]. It took 7 years for ISRO to develop [[Astronomy:Satellite Launch Vehicle|Satellite Launch Vehicle]] capable of putting {{cvt|40|kg}} into a {{convert|400|km|mi|adj=on}} orbit. An SLV Launch Pad, ground stations, tracking networks, radars and other communications were set up for a launch campaign. The SLV's first launch in 1979 carried a [[Engineering:Rohini (satellite)|Rohini technology payload]] but could not inject the satellite into its desired orbit. It was followed by a successful launch in 1980 carrying a [[Engineering:Rohini (satellite)|Rohini Series-I]] satellite, making India the seventh country to reach Earth's orbit after the USSR, the US, France, the [[Engineering:Prospero (spacecraft)|UK]], China and Japan. RS-1 was the third Indian satellite to reach orbit as [[Engineering:Bhaskara (satellite)|Bhaskara]] had been launched from the USSR in 1979. Efforts to develop a [[Engineering:Medium-lift launch vehicle|medium-lift launch vehicle]] capable of putting {{convert|600|kg|lb|adj=on}} class spacecrafts into {{convert|1000|km|mi|adj=on}} [[Astronomy:Sun-synchronous orbit|Sun-synchronous orbit]] had already begun in 1978.<ref>{{cite news |url=https://books.google.com/books?id=IbbMj56ht8sC&pg=PA215 |title=Indian ambitions in space go sky-high |date=22 January 1981 |publisher=New Scientist |page=215 |access-date=14 March 2021 |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413211511/https://books.google.com/books?id=IbbMj56ht8sC&pg=PA215 |url-status=live}}</ref> They would later lead to the development of PSLV.<ref name="SLVFlipbook">{{cite web |url=https://www.isro.gov.in/sites/default/files/flipping_book/58-SI-Jul-Sep-05/files/assets/common/downloads/publication.pdf |title=First Successful Launch of SLV-3 – Silver Jubilee |publisher=ISRO |page=17 |date=July–September 2005 |access-date=15 March 2021 |archive-date=12 November 2020 |archive-url=https://web.archive.org/web/20201112000426/https://www.isro.gov.in/sites/default/files/flipping_book/58-SI-Jul-Sep-05/files/assets/common/downloads/publication.pdf |url-status=live}}</ref> The SLV-3 later had two more launches before discontinuation in 1983.<ref name=slv>{{cite web |url=http://www.isro.gov.in/launchers/slv |title=SLV |publisher=isro.gov.in |access-date=15 March 2021 |archive-date=29 May 2017 |archive-url=https://web.archive.org/web/20170529133357/http://www.isro.gov.in/launchers/slv |url-status=live}}</ref> ISRO's [[Astronomy:Liquid Propulsion Systems Centre|Liquid Propulsion Systems Centre]] (LPSC) was set up in 1985 and started working on a more powerful engine, Vikas, based upon the French Viking.<ref>{{cite book |last1=Sutton |first1=George Paul |title=History of Liquid Propellant Rocket Engines |date=2006 |publisher=AIAA |isbn=978-1-56347-649-5 |page=799 |url=https://books.google.com/books?id=s1C9Oo2I4VYC&pg=PA799 |language=en |access-date=14 March 2021 |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413211426/https://books.google.com/books?id=s1C9Oo2I4VYC&pg=PA799 |url-status=live}}</ref> Two years later, facilities to test liquid-fuelled rocket engines were established and development and testing of various rocket engines [[Engineering:Thrusters (spacecraft)|thrusters]] began.<ref name="lpsctimeline">{{Cite web |title=Timeline of LPSC |url=https://www.lpsc.gov.in/timeline.html |work=Liquid Propulsion Systems Centre |access-date=15 March 2021 |archive-date=9 March 2021 |archive-url=https://web.archive.org/web/20210309084932/https://www.lpsc.gov.in/timeline.html |url-status=live}}</ref>

At the same time, another solid-fuelled rocket [[Astronomy:Augmented Satellite Launch Vehicle|Augmented Satellite Launch Vehicle]] based upon SLV-3 was being developed, and technologies to launch satellites into [[Astronomy:Geostationary orbit|geostationary orbit]] (GTO). ASLV had limited success and multiple launch failures; it was soon discontinued.<ref name=ITASLV>{{cite news |last=Menon |first=Amarnath |title=Setback in the sky |url=http://indiatoday.intoday.in/story/failure-of-aslv-mission-comes-a-major-blow-to-india-ambitious-space-programme/1/336942.html |access-date=18 January 2014 |newspaper=India Today |date=15 April 1987 |archive-date=20 January 2014 |archive-url=https://web.archive.org/web/20140120143457/http://indiatoday.intoday.in/story/failure-of-aslv-mission-comes-a-major-blow-to-india-ambitious-space-programme/1/336942.html |url-status=live}}</ref> Alongside, technologies for the [[Engineering:Indian National Satellite System|Indian National Satellite System]] of communication satellites<ref>{{Cite web |title=Communication Satellites |url=https://www.isro.gov.in/spacecraft/communication-satellites |work=Indian Space Research Organisation |access-date=16 March 2021 |archive-date=26 February 2021 |archive-url=https://web.archive.org/web/20210226184331/https://www.isro.gov.in/spacecraft/communication-satellites |url-status=live}}</ref> and the [[Earth:Indian Remote Sensing Programme|Indian Remote Sensing Programme]] for earth observation satellites<ref>{{Cite journal |last1=Navalgund |first1=R. R. |last2=Kasturirangan |first2=K. |date=1 December 1983 |title=The Indian remote sensing satellite: a programme overview |journal=Proceedings of the Indian Academy of Sciences Section C: Engineering Sciences |language=en |volume=6 |issue=4 |pages=313–336 |doi=10.1007/BF02881137 |issn=0973-7677 |bibcode=1983InES....6..313N |s2cid=140649818}}</ref> were developed and launches from overseas initiated. The number of satellites eventually grew and the systems were established as among the largest satellite constellations in the world, with multi-band communication, radar imaging, optical imaging and meteorological satellites.<ref name="IRSSaga">{{Cite web |url=https://www.isro.gov.in/saga-of-indian-remote-sensing-satellite-system |title=The Saga of Indian Remote Sensing Satellite System – ISRO |website=www.isro.gov.in |access-date=16 March 2021 |archive-date=27 June 2019 |archive-url=https://web.archive.org/web/20190627192046/https://www.isro.gov.in/saga-of-indian-remote-sensing-satellite-system |url-status=live}}</ref>

=== 1990s ===
The arrival of PSLV in 1990s became a major boost for the Indian space programme. With the exception of its first flight in 1994 and two partial failures later, PSLV had a streak of more than 50 successful flights. PSLV enabled India to launch all of its [[Astronomy:Low Earth orbit|low Earth orbit]] satellites, small payloads to GTO and hundreds of [[Astronomy:List of foreign satellites launched by India|foreign satellites]].<ref>{{cite web |title=PSLV (1) |url=http://space.skyrocket.de/doc_lau_det/pslv_1.htm |publisher=Gunter's Space Page |access-date=16 March 2021 |archive-date=5 December 2020 |archive-url=https://web.archive.org/web/20201205170455/https://space.skyrocket.de/doc_lau_det/pslv_1.htm |url-status=live}}</ref> Along with the PSLV flights, development of a new rocket, a [[Engineering:Geosynchronous Satellite Launch Vehicle|Geosynchronous Satellite Launch Vehicle]] (GSLV) was going on. India tried to obtain upper-stage cryogenic engines from Russia's [[Company:Glavkosmos|Glavkosmos]] but was blocked by the US from doing so. As a result, KVD-1 engines were imported from Russia under a new agreement which had limited success<ref name=flGSLVQuest>{{cite news |last=Subramanian |first=T S |title=The GSLV Quest |url=http://www.frontline.in/navigation/?type=static&page=flonnet&rdurl=fl1806/18060820.htm |access-date=16 March 2021 |newspaper=Frontline |date=17–31 March 2001 |archive-date=1 April 2014 |archive-url=https://web.archive.org/web/20140401030910/http://www.frontline.in/navigation/?type=static&page=flonnet&rdurl=fl1806%2F18060820.htm |url-status=live}}</ref> and a project to develop indigenous cryogenic technology was launched in 1994, taking two decades to reach fulfillment.<ref name=GSLVGopalRaj>{{cite news |last=Raj |first=N Gopal |title=The long road to cryogenic technology |url=http://www.thehindu.com/opinion/lead/the-long-road-to-cryogenic-technology/article397441.ece |access-date=12 December 2013 |newspaper=The Hindu |date=21 April 2011 |location=Chennai, India |archive-date=21 June 2014 |archive-url=https://web.archive.org/web/20140621064359/http://www.thehindu.com/opinion/lead/the-long-road-to-cryogenic-technology/article397441.ece |url-status=live}}</ref> A new agreement was signed with Russia for seven KVD-1 cryogenic stages and a ground mock-up stage with no technology transfer, instead of five cryogenic stages along with the technology and design in the earlier agreement.<ref>{{cite news |last=Subramanian |first=T S |title=The cryogenic quest |url=http://www.frontline.in/static/html/fl1809/18090140.htm |access-date=13 December 2013 |newspaper=Frontline |date=28 April – 11 May 2001 |archive-date=13 December 2013 |archive-url=https://web.archive.org/web/20131213054718/http://www.frontline.in/static/html/fl1809/18090140.htm |url-status=live}}</ref> These engines were used for the initial flights and were named GSLV Mk.1.<ref>{{cite web |title=Why ISRO's New Engine and Mk III Rocket Are Reasons to Forget 1990 Cryogenic Scandal |url=https://thewire.in/138915/cryogenic-ce-20-isro-gslv-mk-iii/ |website=The Wire |access-date=10 February 2018 |archive-date=11 February 2018 |archive-url=https://web.archive.org/web/20180211192523/https://thewire.in/138915/cryogenic-ce-20-isro-gslv-mk-iii/ |url-status=live}}</ref> ISRO was under US government sanctions between 6 May 1992 to 6 May 1994.<ref>{{Cite web |date=20 April 2021 |title=Master Sanctions Chart – State Department |url=https://www.state.gov/wp-content/uploads/2021/04/MASTER-Sanctions-chart-April-2021.pdf |url-status=live |archive-url=https://web.archive.org/web/20210504170258/https://www.state.gov/wp-content/uploads/2021/04/MASTER-Sanctions-chart-April-2021.pdf |archive-date=4 May 2021 |access-date=4 May 2021}}</ref> After the United States refused to help India with [[Engineering:Global Positioning System|Global Positioning System]] (GPS) technology during the Kargil war, ISRO was prompted to develop its own satellite navigation system IRNSS which it is now expanding further.<ref>{{Cite news |url=http://timesofindia.indiatimes.com/home/science/How-Kargil-spurred-India-to-design-own-GPS/articleshow/33254691.cms |title=How Kargil spurred India to design own GPS |last=Srivastava |first=Ishan |date=5 April 2014 |access-date=9 December 2014 |work=The Times of India |archive-date=15 December 2016 |archive-url=https://web.archive.org/web/20161215183718/http://timesofindia.indiatimes.com/home/science/How-Kargil-spurred-India-to-design-own-GPS/articleshow/33254691.cms |url-status=live}}</ref>

=== 21st century ===
In 2003, when [[Astronomy:Shenzhou 5|China sent humans into space]], Prime Minister Atal Bihari Vajpayee urged scientists to develop technologies to land humans on the Moon<ref>{{cite news |title=India 'on course' for the Moon |url=http://news.bbc.co.uk/2/hi/south_asia/2917271.stm |work=BBC News |date=4 April 2003 |access-date=16 March 2021 |archive-date=21 January 2019 |archive-url=https://web.archive.org/web/20190121160746/http://news.bbc.co.uk/2/hi/south_asia/2917271.stm |url-status=live}}</ref> and programmes for lunar, planetary and crewed missions were started. ISRO launched [[Astronomy:Chandrayaan-1|Chandrayaan-1]] in 2008, purportedly the first probe to verify the presence of water on the Moon,<ref name="THMoon">{{cite news |title=MIP detected water on Moon way back in June: ISRO Chairman |date=25 September 2009 |url=http://www.thehindu.com/sci-tech/science/mip-detected-water-on-moon-way-back-in-june-isro-chairman/article24854.ece |newspaper=The Hindu |access-date=12 March 2021 |archive-date=25 January 2016 |archive-url=https://web.archive.org/web/20160125193516/http://www.thehindu.com/sci-tech/science/mip-detected-water-on-moon-way-back-in-june-isro-chairman/article24854.ece |url-status=live}}</ref> and the [[Astronomy:Mars Orbiter Mission|Mars Orbiter Mission]] in 2013, the first Asian spacecraft to enter Martian orbit, making India the first country to succeed at this on its first attempt.<ref>{{cite news |url=https://www.theguardian.com/science/2014/sep/24/india-mars-satellite-successfully-enters-orbit |title=India's Mars satellite successfully enters orbit, bringing country into space elite |work=The Guardian |first=Jason |last=Burke |date=24 September 2014 |access-date=16 March 2021 |quote=India has become the first nation to send a satellite into orbit around Mars on its first attempt, and the first Asian nation to do so. |archive-date=4 December 2019 |archive-url=https://web.archive.org/web/20191204185909/https://www.theguardian.com/science/2014/sep/24/india-mars-satellite-successfully-enters-orbit |url-status=live}}</ref> Subsequently, the cryogenic upper stage for GSLV rocket became operational, making India the sixth country to have full launch capabilities.<ref name="Cryo14">{{Cite news |author=TE Narasimhan |date=7 January 2014 |title=ISRO on cloud nine as India joins "cryo club" |url=https://wap.business-standard.com/article/current-affairs/isro-on-cloud-nine-as-india-joins-cryo-club-114010700023_1.html |newspaper=Business Standard |location=Chennai |access-date=12 March 2021}}</ref> A new heavier-lift launcher [[Engineering:LVM3|LVM3]] was introduced in 2014 for heavier satellites and future human space missions.<ref>{{Cite web |title=GSLV Mk III |url=https://www.isro.gov.in/launchers/gslv-mk-iii |publisher=ISRO |access-date=16 March 2021 |archive-date=20 September 2018 |archive-url=https://web.archive.org/web/20180920234908/https://www.isro.gov.in/launchers/gslv-mk-iii |url-status=live}}</ref>

On 23 August 2023, India achieved its first soft landing on an extraterrestrial body and became the first nation to successfully land a spacecraft near the [[Astronomy:Lunar south pole|lunar south pole]] with ISRO's Chandrayaan-3, the third Moon mission.<ref>{{Cite news |last=Dhillon |first=Amrit |date=2023-08-23 |title=India lands spacecraft near south pole of moon in historic first |language=en-GB |work=The Guardian |url=https://www.theguardian.com/science/2023/aug/23/india-chandrayaan-3-moon-landing-mission |access-date=2023-08-28 |issn=0261-3077}}</ref><ref>{{Cite news |last=Dhillon |first=Amrit |date=2023-08-23 |title=India lands spacecraft near south pole of moon in world first |language=en-GB |work=The Guardian |url=https://www.theguardian.com/science/2023/aug/23/india-chandrayaan-3-moon-landing-mission |access-date=2023-08-23 |issn=0261-3077 |archive-date=5 November 2023 |archive-url=https://web.archive.org/web/20231105194944/https://www.theguardian.com/science/2023/aug/23/india-chandrayaan-3-moon-landing-mission |url-status=live }}</ref> Indian moon mission, [[Astronomy:Chandrayaan-3|Chandrayaan-3]] (translated as "mooncraft" in English), saw the successful soft landing of its ''Vikram'' lander at 6.04pm IST (1234 GMT) near the little-explored region of the Moon in a world's first for any space programme.<ref>{{Cite web |date=23 August 2023 |title=Chandrayaan-3 Live Updates: 'Dawn of new India,' says PM Modi as ISRO lands spacecraft on the Moon |url=https://www.indianexpress.com/article/india/chandrayaan-3-moon-landing-live-updates-isro-vikram-lander-8903547/ |archive-url=https://web.archive.org/web/20231105194950/https://indianexpress.com/article/india/chandrayaan-3-moon-landing-live-updates-isro-vikram-lander-8903547/ |archive-date=5 November 2023 |access-date=23 August 2023 |website=indianexpress.com |publisher=Indian Express |url-status=live }}</ref> India then successfully launched its first sun probe, the [[Astronomy:Aditya-L1|Aditya-L1]], aboard a PSLV on September 2.<ref>{{cite journal |url=https://www.nature.com/articles/d41586-023-02811-2 |author=T. V. Padma |date=September 4, 2023 |journal=Nature |title=India's first Sun mission will investigate the origins of space weather |volume=621 |issue=7978 |pages=240–241 |doi=10.1038/d41586-023-02811-2 |pmid=37667110 |bibcode=2023Natur.621..240P |s2cid=261526289 |access-date=September 5, 2023 |archive-date=5 October 2023 |archive-url=https://web.archive.org/web/20231005030143/https://www.nature.com/articles/d41586-023-02811-2 |url-status=live }}</ref><ref>{{cite web |url=https://www.space.com/india-launches-aditya-l1-first-solar-probe |first=Mike |last=Wall |website=Space.com |date=September 2, 2023 |title=India launches Aditya-L1 solar observatory, its 1st-ever sun probe |access-date=September 5, 2023 |archive-date=20 October 2023 |archive-url=https://web.archive.org/web/20231020230548/https://www.space.com/india-launches-aditya-l1-first-solar-probe |url-status=live }}</ref>

=== Agency logo ===
ISRO did not have an official logo until 2002. The one adopted consists of an orange arrow shooting upwards attached with two blue coloured satellite panels with the name of ISRO written in two sets of text, orange-coloured Devanagari on the left and blue-coloured English in the Prakrta typeface on the right.<ref name="SpaceIndia_Q2_2002">{{cite web |title=ISRO gets new identity |url=https://www.isro.gov.in/sites/default/files/flipping_book/47-SI-Apr-Jun-2002/files/assets/basic-html/page-15.html |publisher=Indian Space Research Organisation |access-date=19 August 2018 |archive-url=https://web.archive.org/web/20180820005819/https://www.isro.gov.in/sites/default/files/flipping_book/47-SI-Apr-Jun-2002/files/assets/basic-html/page-15.html |archive-date=20 August 2018 |url-status=live}}</ref><ref name="logo">{{cite news |title=A 'vibrant' new logo for ISRO |url=https://timesofindia.indiatimes.com/india/A-vibrant-new-logo-for-Isro/articleshow/19567123.cms |access-date=19 August 2018 |agency=Times of India |date=19 August 2002 |archive-url=https://web.archive.org/web/20180909102134/https://timesofindia.indiatimes.com/india/A-vibrant-new-logo-for-Isro/articleshow/19567123.cms |archive-date=9 September 2018 |url-status=live}}</ref>

== Goals and objectives ==
[[File:Vikram Sarabhai.jpg|thumb|180px|[[Biography:Vikram Sarabhai|Vikram Sarabhai]], first chairperson of INCOSPAR, ISRO's predecessor organization]]
As the national space agency of India, ISRO's purpose is the pursuit of all space-based applications such as research, reconnaissance, and communications. It undertakes the design and development of space rockets and satellites, and undertakes explores upper atmosphere and deep space exploration missions. ISRO has also incubated technologies in India's private space sector, boosting its growth.<ref name="isro_aboutus">{{cite web |url=http://www.isro.gov.in/about-isro/vision-and-mission-statements |title=ISRO – Vision and Mission Statements |publisher=ISRO |access-date=27 August 2015 |archive-url=https://web.archive.org/web/20150904080053/http://www.isro.gov.in/about-isro/vision-and-mission-statements |archive-date=4 September 2015 |url-status=live}}</ref>{{sfn|Rajagopalan|Prasad|2017|pp=1-2}}

On the topic of the importance of a space programme to India as a developing nation, Vikram Sarabhai as INSCOPAR chair said in 1969:{{sfn|Burleson|2005|page=136}}<ref>{{Cite web |url=https://www.isro.gov.in/about-isro/dr-vikram-ambalal-sarabhai-1963-1971 |title=Dr. Vikram Ambalal Sarabhai (1963–1971) – ISRO |access-date=21 September 2019 |archive-url=https://web.archive.org/web/20190422014937/https://www.isro.gov.in/about-isro/dr-vikram-ambalal-sarabhai-1963-1971 |archive-date=22 April 2019 |url-status=live}}</ref><ref name="Sarabhai_compilation">{{cite web |title=List of Important Speeches And Papers By Dr. Vikram A. Sarabhai. |url=https://www.prl.res.in/~library/sarabhai_v_speeches.pdf |website=PRL.res.in |access-date=27 June 2019 |archive-url=https://web.archive.org/web/20190627181445/https://www.prl.res.in/~library/sarabhai_v_speeches.pdf |archive-date=27 June 2019 |page=113}}</ref>

{{blockquote|text=To us, there is no ambiguity of purpose. We do not have the fantasy of competing with the economically advanced nations in the exploration of the Moon or the planets or manned space-flight. But we are convinced that if we are to play a meaningful role nationally, and in the community of nations, we must be second to none in the application of advanced technologies to the real problems of man and society, which we find in our country. And we should note that the application of sophisticated technologies and methods of analysis to our problems is not to be confused with embarking on grandiose schemes, whose primary impact is for show rather than for progress measured in hard economic and social terms.}}

The former president of India and chairman of [[Organization:Defence Research and Development Organisation|DRDO]], A. P. J. Abdul Kalam, said:<ref name=apj_autobiography>{{Cite book |url=https://books.google.com/books?id=c3qmIZtWUjAC&pg=PA43 |title=Wings of Fire: An Autobiography |last1=Kalam |first1=Avul Pakir Jainulabdeen Abdul |last2=Tiwari |first2=Arun |date=1999 |publisher=Universities Press |isbn=9788173711466 |language=en |access-date=16 August 2019 |archive-date=17 April 2017 |archive-url=https://web.archive.org/web/20170417091638/https://books.google.com/books?id=c3qmIZtWUjAC |url-status=live}}</ref>
{{blockquote|text=Very many individuals with myopic vision questioned the relevance of space activities in a newly independent nation which was finding it difficult to feed its population. But neither Prime Minister Nehru nor Prof. Sarabhai had any ambiguity of purpose. Their vision was very clear: if Indians were to play a meaningful role in the community of nations, they must be second to none in the application of advanced technologies to their real-life problems. They had no intention of using it merely as a means of displaying our might.}}

India's economic progress has made its space programme more visible and active as the country aims for greater [[Self-sustainability|self-reliance]] in space technology.<ref name=newsweek1 /> In 2008, India launched as many as 11{{Nbsp}}satellites, including nine from other countries, and went on to become the first nation to launch 10{{Nbsp}}satellites on one{{Nbsp}}rocket.<ref name=newsweek1>{{Cite web |url=http://www.newsweek.com/id/160037 |title=Hennock etc. (2008), "The Real Space Race Is in Asia", ''Newsweek''. |website=Newsweek |access-date=25 December 2008 |archive-url=https://web.archive.org/web/20081222044922/http://www.newsweek.com/id/160037 |archive-date=22 December 2008 |url-status=live |date=20 September 2008}}</ref> ISRO has put into operation two major satellite systems: the [[Engineering:Indian National Satellite System|Indian National Satellite System]] (INSAT) for communication services, and the [[Earth:Indian Remote Sensing Programme|Indian Remote Sensing Programme]] (IRS) satellites for management of natural resources.<ref>{{Cite web |title=Communication Satellites |url=https://www.isro.gov.in/spacecraft/communication-satellites |access-date=22 July 2022 |website=ISRO |archive-date=26 February 2021 |archive-url=https://web.archive.org/web/20210226184331/https://www.isro.gov.in/spacecraft/communication-satellites |url-status=dead}}</ref><ref>{{Cite web |title=The Saga of Indian Remote Sensing Satellite System |url=https://www.isro.gov.in/saga-of-indian-remote-sensing-satellite-system |access-date=22 July 2022 |website=ISRO |archive-date=27 June 2019 |archive-url=https://web.archive.org/web/20190627192046/https://www.isro.gov.in/saga-of-indian-remote-sensing-satellite-system |url-status=dead}}</ref>

== Organisation structure and facilities ==
[[File:Department of Space (India) - organization chart.png|upright=1.3|thumb|The organisational structure of the Indian Department of Space]]
ISRO is managed by the DOS, which itself falls under the authority of the Space Commission and manages the following agencies and institutes:<ref>{{cite web |title=Organisation Structure |url=https://www.isro.gov.in/about-isro/organisation-structure |url-status=live |archive-url=https://web.archive.org/web/20220612065305/https://www.isro.gov.in/about-isro/organisation-structure |archive-date=12 June 2022 |access-date=12 June 2022 |publisher= |df=dmy-all}}</ref><ref>{{Cite web |url=https://www.isro.gov.in/update/03-aug-2019/foundation-stone-of-space-situational-awareness-control-centre-chairman-isro |title=Foundation stone of Space Situational Awareness Control Centre by Chairman, ISRO – ISRO |website=www.isro.gov.in |access-date=3 August 2019 |archive-url=https://web.archive.org/web/20190830223917/http://isro.gov.in/update/03-aug-2019/foundation-stone-of-space-situational-awareness-control-centre-chairman-isro |archive-date=30 August 2019 |url-status=live}}</ref><ref>{{Cite web |url=https://www.isro.gov.in/update/30-jan-2019/inauguration-of-human-space-flight-centre-hsfc |title=Inauguration of Human Space Flight Centre (HSFC) – ISRO |website=www.isro.gov.in |access-date=3 August 2019 |archive-url=https://web.archive.org/web/20190329015418/https://www.isro.gov.in/update/30-jan-2019/inauguration-of-human-space-flight-centre-hsfc |archive-date=29 March 2019 |url-status=live}}</ref>
* Indian Space Research Organisation (ISRO)
* [[Company:Antrix Corporation|Antrix Corporation]] – The marketing arm of ISRO, Bengaluru
* [[Organization:Physical Research Laboratory|Physical Research Laboratory]] (PRL), Ahmedabad
* [[Organization:National Atmospheric Research Laboratory|National Atmospheric Research Laboratory]] (NARL), Gadanki, Andhra Pradesh
* [[Company:NewSpace India Limited|NewSpace India Limited]] – Commercial wing, Bengaluru
* [[Astronomy:North-Eastern Space Applications Centre|North-Eastern Space Applications Centre]]<ref>{{cite web |url=http://necouncil.nic.in/index3.asp?sslid=72&subsublinkid=153 |title=NEC – North Eastern Council |publisher=Necouncil.nic.in |access-date=8 February 2013 |url-status=dead |archive-url=https://web.archive.org/web/20120225165210/http://necouncil.nic.in/index3.asp?sslid=72&subsublinkid=153 |archive-date=25 February 2012}}</ref> (NE-SAC), Umiam
* [[Organization:Indian Institute of Space Science and Technology|Indian Institute of Space Science and Technology]] (IIST), Thiruvananthapuram – India's space university

=== Research facilities ===
{| class=wikitable
|-
! style="width:18%;"| Facility !! style="width:15%;"| Location !! style="width:67%;"| Description
|-
| [[Company:Vikram Sarabhai Space Centre|Vikram Sarabhai Space Centre]] || Thiruvananthapuram || The largest ISRO base is also the main technical centre and the venue for development of the [[Astronomy:Satellite Launch Vehicle|SLV-3]], ASLV, and PSLV series.{{sfn|Ojha|pp=142}} The base supports TERLS and the [[Astronomy:Rohini (rocket family)|Rohini Sounding Rocket]] programme.{{sfn|Ojha|pp=142}} It is also developing the GSLV series.{{sfn|Ojha|pp=142}}
|-
| [[Astronomy:Liquid Propulsion Systems Centre|Liquid Propulsion Systems Centre]] || Thiruvananthapuram and Bengaluru || The LPSC handles design, development, testing and implementation of liquid propulsion control packages, liquid stages and liquid engines for launch vehicles and satellites.{{sfn|Ojha|pp=142}} The testing of these systems is largely conducted at [[Astronomy:ISRO Propulsion Complex|IPRC]] at Mahendragiri.{{sfn|Ojha|pp=142}} The LPSC, Bengaluru also produces precision transducers.{{sfn|Suri|Rajaram|pp=414}}
|-
| [[Organization:Physical Research Laboratory|Physical Research Laboratory]] || Ahmedabad || Solar planetary physics, infrared astronomy, geo-cosmo physics, plasma physics, [[Physics:Astrophysics|astrophysics]], [[Earth:Archaeology|archaeology]], and [[Earth:Hydrology|hydrology]] are some of the branches of study at this institute.;{{sfn|Ojha|pp=142}} it also operates the observatory at Udaipur.{{sfn|Ojha|pp=142}}
|-
| National Atmospheric Research Laboratory || Tirupati || The NARL carries out fundamental and applied research in atmospheric and space sciences.<ref>{{Cite web |title=About Us |url=https://www.narl.gov.in/ |access-date=22 July 2022 |website=[[Organization:National Atmospheric Research Laboratory|National Atmospheric Research Laboratory]] |archive-date=14 July 2017 |archive-url=https://web.archive.org/web/20170714161347/https://www.narl.gov.in/ |url-status=live }}</ref>
|-
| [[Astronomy:Space Applications Centre|Space Applications Centre]] || Ahmedabad || The SAC deals with the various aspects of the practical use of space technology.{{sfn|Ojha|pp=142}} Among the fields of research at the SAC are [[Geodesy|geodesy]], [[Engineering:Telecommunication|satellite based telecommunications]], [[Engineering:Surveying|surveying]], [[Earth:Remote sensing|remote sensing]], [[Physics:Meteorology|meteorology]], environment monitoring etc.{{sfn|Ojha|pp=142}} The SAC also operates the Delhi Earth Station, which is located in Delhi and is used for demonstration of various SATCOM experiments in addition to normal SATCOM operations.{{sfn|Suri|Rajaram|pp=415}}
|-
| [[Astronomy:North-Eastern Space Applications Centre|North-Eastern Space Applications Centre]] || Shillong || Providing developmental support to North East by undertaking specific application projects using remote sensing, GIS, satellite communication and conducting space science research.<ref>{{Cite web |title=About NESAC |url=https://nesac.gov.in/about/about-nesac/ |access-date=22 July 2022 |website=[[Astronomy:North-Eastern Space Applications Centre|North-Eastern Space Applications Centre]] |archive-date=22 July 2022 |archive-url=https://web.archive.org/web/20220722115617/https://nesac.gov.in/about/about-nesac/ |url-status=live }}</ref>
|}

=== Test facilities ===
{| class=wikitable
|-
! style="width:18%;"| Facility !! style="width:15%;"| Location !! style="width:67%;"| Description
|-
| [[Astronomy:ISRO Propulsion Complex|ISRO Propulsion Complex]] || Mahendragiri || Formerly called LPSC-Mahendragiri, was declared a separate centre. It handles testing and assembly of liquid propulsion control packages, liquid engines, and stages for launch vehicles and satellites.{{sfn|Ojha|pp=142}}
|}

=== Construction and launch facilities ===
{| class=wikitable
|-
! style="width:18%;"| Facility !! style="width:15%;"| Location !! style="width:67%;"| Description
|-
| [[Astronomy:U R Rao Satellite Centre|U R Rao Satellite Centre]] || Bengaluru || The venue of eight successful spacecraft projects is also one of the main satellite technology bases of ISRO. The facility serves as a venue for implementing indigenous spacecraft in India.{{sfn|Ojha|pp=142}} The satellites ''Aaryabhata'', ''Bhaskara'', ''APPLE'', and ''IRS-1A'' were built at this site, and the IRS and INSAT satellite series are presently under development here. This centre was formerly known as ISRO Satellite Centre.{{sfn|Suri|Rajaram|pp=414}}
|-
| Laboratory for Electro-Optics Systems|| Bengaluru || The Unit of ISRO responsible for the development of altitude sensors for all satellites. The high precision optics for all cameras and payloads in all ISRO satellites are developed at this laboratory, located at Peenya Industrial Estate, Bengaluru.
|-
| [[Astronomy:Satish Dhawan Space Centre|Satish Dhawan Space Centre]] || [[Place:Sriharikota|Sriharikota]] || With multiple sub-sites the Sriharikota island facility acts as a launching site for India's satellites.{{sfn|Ojha|pp=142}} The Sriharikota facility is also the main launch base for India's sounding rockets.{{sfn|Suri|Rajaram|pp=414}} The centre is also home to India's largest Solid Propellant Space Booster Plant (SPROB) and houses the Static Test and Evaluation Complex (STEX).{{sfn|Suri|Rajaram|pp=414}} The Second Vehicle Assembly Building (SVAB) at Sriharikota is being realised as an additional integration facility, with suitable interfacing to a second launch pad.<ref>{{cite news |title=Second Vehicle Assembly Building being realised at ISRO |url=http://economictimes.indiatimes.com/news/science/second-vehicle-assembly-building-being-realised-at-isro/articleshow/50531617.cms |newspaper=The Economic Times |access-date=20 January 2016 |date=11 January 2016 |archive-url=https://web.archive.org/web/20160114044154/http://economictimes.indiatimes.com/news/science/second-vehicle-assembly-building-being-realised-at-isro/articleshow/50531617.cms |archive-date=14 January 2016 |url-status=live}}</ref><ref>{{cite news |last1=Madumathi |first1=D.S. |title=Sriharikota space port scores 50 |url=http://www.thehindu.com/todays-paper/tp-national/sriharikota-space-port-scores-50/article8070373.ece |access-date=20 January 2016 |work=The Hindu |date=6 January 2016 |archive-url=https://web.archive.org/web/20160109041156/http://www.thehindu.com/todays-paper/tp-national/sriharikota-space-port-scores-50/article8070373.ece |archive-date=9 January 2016 |url-status=live}}</ref>
|-
| [[Astronomy:Thumba Equatorial Rocket Launching Station|Thumba Equatorial Rocket Launching Station]] ||Thiruvananthapuram|| TERLS is used to launch sounding rockets.<ref>{{Cite web |title=Sounding Rockets |url=https://www.isro.gov.in/launchers/sounding-rockets |access-date=22 July 2022 |website=ISRO |archive-date=11 December 2019 |archive-url=https://web.archive.org/web/20191211145536/https://www.isro.gov.in/launchers/sounding-rockets |url-status=dead}}</ref>
|}

=== Tracking and control facilities ===
{| class=wikitable
|-
! style="width:18%;"| Facility !! style="width:15%;"| Location !! style="width:67%;"| Description
|-
| [[Engineering:Indian Deep Space Network|Indian Deep Space Network]] (IDSN) || Bengaluru || This network receives, processes, archives and distributes the spacecraft health data and payload data in real-time. It can track and monitor satellites up to very large distances, even beyond the [[Astronomy:Moon|Moon]].<ref>{{Cite web |title=Indian Space Science Data Centre (ISSDC) – Gateway to India's Space Science Data |url=https://www.isro.gov.in/indian-space-science-data-centre-issdc-gateway-to-indias-space-science-data |access-date=22 July 2022 |website=ISRO |archive-date=1 September 2019 |archive-url=https://web.archive.org/web/20190901140723/https://www.isro.gov.in/indian-space-science-data-centre-issdc-gateway-to-indias-space-science-data |url-status=dead}}</ref>
|-
| [[Astronomy:National Remote Sensing Centre|National Remote Sensing Centre]] || Hyderabad || The NRSC applies remote sensing to manage natural resources and study aerial surveying.{{sfn|Ojha|pp=142}} With centres at Balanagar and Shadnagar it also has training facilities at Dehradun acting as the [[Organization:Indian Institute of Remote Sensing|Indian Institute of Remote Sensing]].{{sfn|Ojha|pp=142}}
|-
| ISRO Telemetry, Tracking and Command Network ||Bengaluru (headquarters) and a number of ground stations throughout India and the world.{{sfn|Suri|Rajaram|pp=415}} || [[Software development]], ground operations, Tracking Telemetry and Command (TTC), and support is provided by this institution.{{sfn|Ojha|pp=142}} ISTRAC has Tracking stations throughout the country and all over the world in [[Place:Port Louis|Port Louis]] (Mauritius), Bearslake (Russia), Biak (Indonesia) and Brunei.<ref>{{Cite web |title=SRO Telemetry, Tracking and Command Network (ISTRAC) |url=https://www.isro.gov.in/about-isro/isro-telemetry-tracking-and-command-network-istrac |access-date=22 July 2022 |website=ISRO |archive-date=28 March 2019 |archive-url=https://web.archive.org/web/20190328053757/https://www.isro.gov.in/about-isro/isro-telemetry-tracking-and-command-network-istrac |url-status=dead}}</ref>
|-
| Master Control Facility || Bhopal; Hassan || Geostationary satellite orbit raising, payload testing, and in-orbit operations are performed at this facility.{{sfn|Suri|Rajaram|pp=416}} The MCF has Earth stations and the Satellite Control Centre (SCC) for controlling satellites.{{sfn|Suri|Rajaram|pp=416}} A second MCF-like facility named 'MCF-B' is being constructed at Bhopal.{{sfn|Suri|Rajaram|pp=416}}
|-
|Space Situational Awareness Control Centre
|Peenya, Bengaluru
|A network of telescopes and radars are being set up under the Directorate of Space Situational Awareness and Management to monitor space debris and to safeguard space-based assets. The new facility will end ISRO's dependence on Norad. The sophisticated multi-object tracking radar installed in Nellore, a radar in Northeast India and telescopes in Thiruvananthapuram, Mount Abu and North India will be part of this network.<ref>{{Cite web |url=https://timesofindia.indiatimes.com/india/new-isro-system-to-shield-its-assets-from-space-debris/articleshow/70528348.cms |title=New Isro system to shield its assets from space debris |last=Singh |first=Surendra |date=5 August 2019 |website=The Times of India |language=en |access-date=6 August 2019 |archive-url=https://web.archive.org/web/20190826090921/https://timesofindia.indiatimes.com/india/new-isro-system-to-shield-its-assets-from-space-debris/articleshow/70528348.cms |archive-date=26 August 2019 |url-status=live}}</ref><ref>{{Cite web |url=https://timesofindia.indiatimes.com/india/isro-keen-on-protecting-space-assets-new-centre-soon/articleshow/70520904.cms |title=Isro keen on protecting space assets; new centre soon |last=Kumar |first=Chethan |date=4 August 2019 |website=The Times of India |language=en |access-date=6 August 2019 |archive-url=https://web.archive.org/web/20190825154922/https://timesofindia.indiatimes.com/india/isro-keen-on-protecting-space-assets-new-centre-soon/articleshow/70520904.cms |archive-date=25 August 2019 |url-status=live}}</ref>
|}

=== Human resource development ===
{| class=wikitable
|-
! style="width:18%;"| Facility !! style="width:15%;"| Location !! style="width:67%;"| Description
|-
| [[Organization:Indian Institute of Remote Sensing|Indian Institute of Remote Sensing]] (IIRS) || Dehradun || The Indian Institute of Remote Sensing (IIRS) is a premier training and educational institute set up for developing trained professionals (P.G. and PhD level) in the field of remote sensing, geoinformatics and GPS technology for natural resources, environmental and disaster management. IIRS is also executing many R&D projects on remote sensing and GIS for societal applications. IIRS also runs various outreach programmes (Live & Interactive and e-learning) to build trained skilled human resources in the field of remote sensing and geospatial technologies.<ref name="IIRSInfo">{{cite web |url=https://www.iirs.gov.in/institute-profile |title=Institute Profile |website=[[Organization:Indian Institute of Remote Sensing|Indian Institute of Remote Sensing]] |access-date=22 July 2022 |archive-date=12 July 2022 |archive-url=https://web.archive.org/web/20220712154554/https://www.iirs.gov.in/institute-profile/ |url-status=live }}</ref>
|-
|[[Organization:Indian Institute of Space Science and Technology|Indian Institute of Space Science and Technology]] (IIST) ||Thiruvananthapuram || The institute offers undergraduate and graduate courses in Aerospace Engineering, Electronics and Communication Engineering (Avionics), and Engineering Physics. The students of the first three{{Nbsp}}batches of IIST were inducted into different ISRO centres.<ref>{{Cite web |title=Institute IIST |url=https://www.iist.ac.in/aboutus/institute |access-date=22 July 2022 |website=[[Organization:Indian Institute of Space Science and Technology|Indian Institute of Space Science and Technology]] |date=4 November 2014 |archive-date=22 July 2022 |archive-url=https://web.archive.org/web/20220722115615/https://www.iist.ac.in/aboutus/institute |url-status=live }}</ref>
|-
|[[Organization:Development and Educational Communication Unit|Development and Educational Communication Unit]]||Ahmedabad || The centre works for education, research, and training, mainly in conjunction with the INSAT programme.{{sfn|Ojha|pp=142}} The main activities carried out at DECU include GRAMSAT and [[Engineering:GSAT-3|EDUSAT]] projects.{{sfn|Suri|Rajaram|pp=414}} The Training and Development Communication Channel (TDCC) also falls under the operational control of the DECU.{{sfn|Suri|Rajaram|pp=415}}
|-
|Space Technology Incubation Centres (S-TICs) at:
* Dr. B. R. Ambedkar National Institute of Technology Jalandhar
* Maulana Azad National Institute of Technology
* National Institute of Technology Agartala
* National Institute of Technology, Rourkela<ref>{{cite news |title=Space tech centre: ISRO team in NIT-Rourkela |url=https://www.newindianexpress.com/states/odisha/2021/mar/10/space-tech-centre-isro-team-in-nit-rourkela-2274636.html |access-date=12 March 2021 |agency=ENS |publisher=New Indian Express |date=10 March 2021 |archive-date=10 March 2021 |archive-url=https://web.archive.org/web/20210310062726/https://www.newindianexpress.com/states/odisha/2021/mar/10/space-tech-centre-isro-team-in-nit-rourkela-2274636.html |url-status=live}}</ref>
* Visvesvaraya National Institute of Technology<ref>{{Cite web |date=18 March 2021 |title=Dr. K. Sivan, Chairman, ISRO / Secretary, DOS inaugurates 3 Space Technology Incubation Centres and releases युक्ति-संचिता YUKTI- Sanchita 2021 |url=https://www.isro.gov.in/update/18-mar-2021/dr-k-sivan-chairman-isro-secretary-dos-inaugurates-3-space-technology-incubation |access-date=20 March 2021 |website=ISRO |archive-date=19 March 2021 |archive-url=https://web.archive.org/web/20210319152059/https://www.isro.gov.in/update/18-mar-2021/dr-k-sivan-chairman-isro-secretary-dos-inaugurates-3-space-technology-incubation |url-status=live}}</ref>
|Agartala, Bhopal, Jalandhar, Nagpur Rourkela, Tiruchirappalli
|The S-TICs opened at premier technical universities in India to promote startups to build applications and products in tandem with the industry and would be used for future space missions. The S-TIC will bring the industry, academia and ISRO under one umbrella to contribute towards research and development (R&D) initiatives relevant to the Indian Space Programme.<ref name=":1a" />
|-
|Space Innovation Centre at:
* Veer Surendra Sai University of Technology
|Burla, Sambalpur
|In line with its ongoing effort to promote R&D in space technology through industry as well as academia, ISRO in collaboration with Veer Surendra Sai University of Technology (VSSUT), Burla, Sambalpur, Odisha, has set up Veer Surendra Sai Space Innovation Centre (VSSSIC) within its campus at Sambalpur. The objective of its Space Innovation Research Lab is to promote and encourage the students in research and development in the area of space science and technology at VSSUT and other institutes within this region.<ref>{{Cite web |title=Space Innovation Centre – ISRO |url=https://www.isro.gov.in/capacity-building/space-innovation-centre |access-date=7 July 2021 |website=www.isro.gov.in |archive-date=9 July 2021 |archive-url=https://web.archive.org/web/20210709184445/https://www.isro.gov.in/capacity-building/space-innovation-centre |url-status=live}}</ref><ref>{{Cite web |date=26 August 2020 |title=VSSUT first to set up Space Innovation-cum-Incubation Centre with ISRO |url=https://www.hindustantimes.com/education/vssut-first-to-set-up-space-innovation-cum-incubation-centre-with-isro/story-baqiVPndKjIN1I6Z5ud9lJ.html |access-date=7 July 2021 |website=Hindustan Times |language=en |archive-date=9 July 2021 |archive-url=https://web.archive.org/web/20210709185416/https://www.hindustantimes.com/education/vssut-first-to-set-up-space-innovation-cum-incubation-centre-with-isro/story-baqiVPndKjIN1I6Z5ud9lJ.html |url-status=live}}</ref>
|-
|Regional Academy Centre for Space (RAC-S) at:
* Banaras Hindu University
* Gauhati University
* Kurukshetra University
* Malaviya National Institute of Technology
* National Institute of Technology Karnataka
* National Institute of Technology Patna
* Indian Institute of Technology (BHU) Varanasi<ref>{{Cite web |date=24 December 2020 |title=ISRO to set up its regional centre at IIT-BHU |url=https://www.hindustantimes.com/education/isro-to-set-up-its-regional-centre-at-iit-bhu/story-UUNEDrrsqHU9JvPddg8IoN.html |access-date=27 December 2020 |website=Hindustan Times |language=en |archive-date=27 December 2020 |archive-url=https://web.archive.org/web/20201227092259/https://www.hindustantimes.com/education/isro-to-set-up-its-regional-centre-at-iit-bhu/story-UUNEDrrsqHU9JvPddg8IoN.html |url-status=live}}</ref>

|Varanasi, Guwahati, [[Place:Kurukshetra|Kurukshetra]], Jaipur, Mangaluru, Patna
|All these centres are set up in tier-2 cities to create awareness, strengthen academic collaboration and act as incubators for space technology, space science and space applications. The activities of RAC-S will maximise the use of research potential, infrastructure, expertise, experience and facilitate capacity building.
|}

=== Antrix Corporation Limited (Commercial Wing) ===
{{Main|Company:Antrix Corporation}}
Set up as the marketing arm of ISRO, [[Company:Antrix Corporation|Antrix]]'s job is to promote products, services and technology developed by ISRO.<ref name="AntrixISRO">{{cite web |url=http://articles.timesofindia.indiatimes.com/2011-02-09/india/28547101_1_isro-eads-astrium-antrix-corporation |archive-url=https://archive.today/20130426170804/http://articles.timesofindia.indiatimes.com/2011-02-09/india/28547101_1_isro-eads-astrium-antrix-corporation |url-status=dead |archive-date=26 April 2013 |work=The Times of India |title=Antrix responsible for marketing ISRO tech |access-date=24 February 2013}}</ref><ref name="AntrixNewChief">{{cite news |url=http://www.thehindubusinessline.com/industry-and-economy/isros-commercial-arm-antrix-gets-new-chief/article2214210.ece |title=ISRO's commercial arm Antrix gets new chief |date=9 June 2011 |newspaper=The Hindu |access-date=24 February 2013 |archive-date=30 May 2022 |archive-url=https://web.archive.org/web/20220530200912/https://www.thehindubusinessline.com/economy/ |url-status=live}}</ref>

=== NewSpace India Limited (Commercial Wing) ===
{{Main|Company:NewSpace India Limited}}
Set up for marketing spin-off technologies, tech transfers through industry interface and scale up industry participation in the space programmes.<ref>{{Cite web |url=https://www.deccanherald.com/science-and-environment/isros-newspace-india-limited-takes-off-in-bengaluru-736355.html |title=ISRO's NewSpace India Limited takes off in Bengaluru |date=27 May 2019 |website=Deccan Herald |language=en |access-date=10 January 2020 |archive-date=1 August 2020 |archive-url=https://web.archive.org/web/20200801233311/https://www.deccanherald.com/science-and-environment/isros-newspace-india-limited-takes-off-in-bengaluru-736355.html |url-status=live}}</ref>

=== Space Technology Incubation Centre ===
ISRO has opened Space Technology Incubation Centres (S-TIC) at premier technical universities in India which will incubate startups to build applications and products in tandem with the industry and would be used for future space missions. The S-TIC will bring the industry, academia and ISRO under one umbrella to contribute towards research and development (R&D) initiatives relevant to the Indian Space Programme. S-TICs are at the National Institute of Technology, Agartala serving for east region, National Institute of Technology, Jalandhar for the north region, and the National Institute of Technology, Tiruchirappalli for the south region of India.<ref name=":1a">{{Cite web |url=https://timesofindia.indiatimes.com/city/trichy/isro-opens-space-tech-incubation-centre-at-nit-t/articleshow/69569218.cms |title=Isro opens space tech incubation centre at NIT-T |date=30 May 2019 |website=The Times of India |language=en |access-date=1 June 2019 |archive-date=28 September 2020 |archive-url=https://web.archive.org/web/20200928200817/https://timesofindia.indiatimes.com/city/trichy/isro-opens-space-tech-incubation-centre-at-nit-t/articleshow/69569218.cms |url-status=live}}</ref>

=== Advanced Space Research Group ===
Similar to NASA's [[Organization:California Institute of Technology|CalTech]]-operated [[Organization:Jet Propulsion Laboratory|Jet Propulsion Laboratory]], ISRO and the [[Organization:Indian Institute of Space Science and Technology|Indian Institute of Space Science and Technology]] (IIST) implemented a joint working framework in 2021, wherein ISRO will approve all short-, medium- and long-term space research projects of common interest between the two. In return, an Advanced Space Research Group (ASRG) formed at IIST under the guidance of the EOC will have full access to ISRO facilities. This was done with the aim of "transforming" the IIST into a premier space research and engineering institute with the capability of leading future space exploration missions for ISRO.<ref>{{cite web |title=Advanced Space Research Group (ASRG) |url=https://www.iist.ac.in/innovation/asrg-vision |access-date=6 March 2022 |archive-date=21 June 2021 |archive-url=https://web.archive.org/web/20210621092504/https://iist.ac.in/innovation/asrg-vision |url-status=live}}</ref><ref>{{cite news |title=ISRO embarking on replicating NASA partnership model in India |url=https://www.thehindu.com/news/national/karnataka/isro-embarking-on-replicating-nasa-partnership-model-in-india/article34169199.ece |access-date=31 March 2021 |agency=PTI |work=The Hindu |date=26 March 2021 |archive-date=26 March 2021 |archive-url=https://web.archive.org/web/20210326204501/https://www.thehindu.com/news/national/karnataka/isro-embarking-on-replicating-nasa-partnership-model-in-india/article34169199.ece |url-status=live}}</ref>

=== Directorate of Space Situational Awareness and Management ===
To reduce dependency on North American Aerospace Defense Command (NORAD) for space situational awareness and protect the civilian and military assets, ISRO is setting up telescopes and radars in four locations to cover each direction. [[Place:Leh|Leh]], Mount Abu and Ponmudi were selected to station the telescopes and radars that will cover North, West and South of Indian territory. The last one will be in Northeast India to cover the entire eastern region. [[Astronomy:Satish Dhawan Space Centre|Satish Dhawan Space Centre]] at Sriharikota already supports Multi-Object Tracking Radar (MOTR).<ref>{{Cite web |last=Pathri |first=Rajasekhar |date=16 May 2015 |title=Isro's tracking radar to start work |url=https://www.deccanchronicle.com/150516/nation-current-affairs/article/isro%E2%80%99s-tracking-radar-start-work |url-status=live |access-date=30 September 2021 |website=Deccan Chronicle |language=en |archive-date=30 September 2021 |archive-url=https://web.archive.org/web/20210930071532/https://www.deccanchronicle.com/150516/nation-current-affairs/article/isro%E2%80%99s-tracking-radar-start-work}}</ref> All the telescopes and radars will come under Directorate of Space Situational Awareness and Management (DSSAM) in Bengaluru. It will collect tracking data on inactive satellites and will also perform research on active debris removal, space debris modelling and mitigation.<ref>{{cite news |title=ISRO chairman lays foundation stone for Space Situational Awareness Control Centre in Bengaluru |url=https://www.aninews.in/news/national/general-news/isro-chairman-lays-foundation-stone-for-space-situational-awareness-control-centre-in-bengaluru20190803215041/ |access-date=11 April 2022 |agency=IANS |publisher=ANI |date=3 August 2019 |archive-date=3 August 2019 |archive-url=https://web.archive.org/web/20190803191709/https://www.aninews.in/news/national/general-news/isro-chairman-lays-foundation-stone-for-space-situational-awareness-control-centre-in-bengaluru20190803215041/ |url-status=live}}</ref>

For early warning, ISRO began a ₹400 crore (4 billion; US$53 million) project called Network for Space Object Tracking and Analysis (NETRA). It will help the country track [[Astronomy:Atmospheric entry|atmospheric entry]], [[Engineering:Intercontinental ballistic missile|intercontinental ballistic missile]] (ICBM), [[Engineering:Anti-satellite weapon|anti-satellite weapon]] and other space-based attacks. All the radars and telescopes will be connected through NETRA. The system will support remote and scheduled operations. NETRA will follow the [[Organization:Inter-Agency Space Debris Coordination Committee|Inter-Agency Space Debris Coordination Committee]] (IASDCC) and [[Organization:United Nations Office for Outer Space Affairs|United Nations Office for Outer Space Affairs]] (UNOSA) guidelines. The objective of NETRA is to track objects at a distance of {{convert|36000|km|mi}} in GTO.<ref>{{Cite web |last=Singh |first=Surendra |date=5 August 2019 |title=New Isro system to shield its assets from space debris |url=https://timesofindia.indiatimes.com/india/new-isro-system-to-shield-its-assets-from-space-debris/articleshow/70528348.cms |url-status=live |access-date=26 September 2021 |website=The Times of India |language=en |archive-date=26 August 2019 |archive-url=https://web.archive.org/web/20190826090921/https://timesofindia.indiatimes.com/india/new-isro-system-to-shield-its-assets-from-space-debris/articleshow/70528348.cms}}</ref><ref>{{Cite news |last=D.S |first=Madhumathi |date=24 September 2019 |title=ISRO initiates 'Project NETRA' to safeguard Indian space assets from debris and other harm |language=en-IN |work=The Hindu |url=https://www.thehindu.com/sci-tech/science/isro-initiates-project-netra-to-safeguard-indian-space-assets-from-debris-and-other-harm/article29497795.ece |access-date=26 September 2021 |issn=0971-751X |archive-date=26 September 2021 |archive-url=https://web.archive.org/web/20210926083059/https://www.thehindu.com/sci-tech/science/isro-initiates-project-netra-to-safeguard-indian-space-assets-from-debris-and-other-harm/article29497795.ece |url-status=live}}</ref>

India signed a [[Finance:Memorandum of understanding|memorandum of understanding]] on the Space Situational Awareness Data Sharing Pact with the US in April 2022.<ref>{{cite news |title=India, United States to sign space MoU during 2+2 meeting in Washington |url=https://www.business-standard.com/article/international/india-united-states-to-sign-space-mou-during-2-2-meeting-in-washington-122041100164_1.html |access-date=11 April 2022 |agency=IANS |publisher=Business Standard |date=11 April 2022 |archive-date=11 April 2022 |archive-url=https://web.archive.org/web/20220411042152/https://www.business-standard.com/article/international/india-united-states-to-sign-space-mou-during-2-2-meeting-in-washington-122041100164_1.html |url-status=live}}</ref><ref>{{Cite press release |title=Readout of U.S. - India 2+2 Ministerial Dialogue |url=https://www.defense.gov/News/Releases/Release/Article/2996350/readout-of-us-india-22-ministerial-dialogue/ |access-date=14 April 2022 |publisher=U.S. Department of Defense |language=en-US |archive-date=13 April 2022 |archive-url=https://web.archive.org/web/20220413222404/https://www.defense.gov/News/Releases/Release/Article/2996350/readout-of-us-india-22-ministerial-dialogue/ |url-status=live}}</ref> It will enable [[Astronomy:Department of Space|Department of Space]] to collaborate with the [[Organization:Combined Space Operations Center|Combined Space Operation Center]] (CSpOC) to protect the space-based assets of both nations from natural and man-made threats.<ref>{{cite news |last1=Roy Chaudhury |first1=Dipanjan |title=India, US to conclude MoU to safeguard satellites from natural, man-made threats |url=https://economictimes.indiatimes.com/news/science/india-us-to-conclude-mou-to-safeguard-satellites-from-natural-man-made-threats/articleshow/86632984.cms?from=mdr |access-date=11 April 2022 |publisher=The Economic Times |date=30 September 2021 |archive-date=11 April 2022 |archive-url=https://web.archive.org/web/20220411141943/https://economictimes.indiatimes.com/news/science/india-us-to-conclude-mou-to-safeguard-satellites-from-natural-man-made-threats/articleshow/86632984.cms?from=mdr |url-status=live}}</ref> On 11 July 2022, ISRO System for Safe and Sustainable Space Operations Management (IS4OM) at Space Situational Awareness Control Centre, in Peenya was inaugurated by Jitender Singh. It will help provide information on on-orbit collision, fragmentation, atmospheric re-entry risk, space-based strategic information, hazardous asteroids, and space weather forecast. IS4OM will safeguard all the operational space assets, identify and monitor other operational spacecrafts with close approaches which have overpasses over [[Earth:Indian subcontinent|Indian subcontinent]] and those which conduct intentional manoeuvres with suspicious motives or seek re-entry within [[Place:South Asia|South Asia]].<ref>{{Cite news |date=2022-07-11 |title=ISRO launches new system for space observation and debris management |language=en-IN |work=The Hindu |url=https://www.thehindu.com/news/cities/bangalore/isro-launches-new-system-for-space-observation-and-debris-management/article65628392.ece |access-date=2022-07-13 |issn=0971-751X |archive-date=13 July 2022 |archive-url=https://web.archive.org/web/20220713170336/https://www.thehindu.com/news/cities/bangalore/isro-launches-new-system-for-space-observation-and-debris-management/article65628392.ece |url-status=live }}</ref>

==== ISRO System for Safe and Sustainable Space Operations Management ====
On 7 March 2023, ISRO System for Safe and Sustainable Space Operations Management (IS4OM) conducted successful controlled re-entry of decommissioned satellite [[Engineering:Megha-Tropiques|Megha-Tropiques]] after firing four on-board 11 Newton thrusters for 20 minutes each. A series of 20 manoeuvres were performed since August 2022 by spending 120&nbsp;kg fuel. The final telemetry data confirmed disintegtration over Pacific Ocean. It was part of a compliance effort following international guidelines on space debris mitigation.<ref>{{Cite news |last=Kumar |first=Chethan |date=2023-03-07 |title=Isro successfully completes controlled re-entry of decommissioned satellite Megha-Tropiques |work=The Times of India |url=https://timesofindia.indiatimes.com/home/science/isro-successfully-completes-controlled-re-entry-of-decommissioned-satellite-megha-tropiques/articleshow/98482698.cms?from=mdr |access-date=2023-03-08 |issn=0971-8257 |archive-date=8 March 2023 |archive-url=https://web.archive.org/web/20230308073436/https://timesofindia.indiatimes.com/home/science/isro-successfully-completes-controlled-re-entry-of-decommissioned-satellite-megha-tropiques/articleshow/98482698.cms?from=mdr |url-status=live }}</ref>

=== Other facilities ===
<!-- Alphabetical order only. -->
* Balasore Rocket Launching Station (BRLS) – Balasore
* Bhaskaracharya Institute For Space Applications and Geo-Informatics (BISAG), Gandhinagar
* [[Astronomy:Human Space Flight Centre|Human Space Flight Centre]] (HSFC), Bengaluru
* [[Astronomy:Indian Regional Navigation Satellite System|Indian Regional Navigation Satellite System]] (IRNSS)
* [[Astronomy:Indian Space Science Data Centre|Indian Space Science Data Centre]] (ISSDC)
* [[Organization:Integrated Space Cell|Integrated Space Cell]]
* [[Organization:Inter-University Centre for Astronomy and Astrophysics|Inter-University Centre for Astronomy and Astrophysics]] (IUCAA)
* ISRO Inertial Systems Unit (IISU) – Thiruvananthapuram
* Master Control Facility
* [[Engineering:Indian Deep Space Network|National Deep Space Observation Centre]] (NDSPO)
* [[Astronomy:National Remote Sensing Centre|Regional Remote Sensing Service Centres]] (RRSSC)

== General satellite programmes ==
{{See also|List of Indian satellites}}[[File:Insat-1B.jpg|thumb|INSAT-1B]]
Since the launch of Aryabhata in 1975,<ref name="Aryabhatta" /> a number of satellite series and constellations have been deployed by Indian and foreign launchers. At present, ISRO operates one of the largest constellations of active communication and earth imaging satellites for military and civilian uses.<ref name="IRSSaga" />

=== The IRS series ===
The Indian Remote Sensing satellites (IRS) are India's earth observation satellites. They are the largest collection of remote sensing satellites for civilian use in operation today, providing remote sensing services.<ref name="IRSSaga" /> All the satellites are placed in polar [[Astronomy:Sun-synchronous orbit|Sun-synchronous orbit]] (except GISATs) and provide data in a variety of spatial, spectral and temporal resolutions to enable several programs to be undertaken relevant to national development. The initial versions are composed of the 1 (A, B, C, [[Engineering:IRS-1D|D]]) nomenclature while the later versions were divided into sub-classes named based on their functioning and uses including [[Engineering:Oceansat|Oceansat]], [[Engineering:Cartosat|Cartosat]], HySIS, EMISAT and ResourceSat etc. Their names were unified under the prefix "EOS" regardless of functioning in 2020.<ref>{{cite web |title=ISRO adopts new satellite naming style, RISAT-2BR2 now EOS-01 |url=https://telanganatoday.com/isro-adopts-new-satellite-naming-style-risat-2br2-now-eos-01 |access-date=7 November 2020 |website=telanganatoday.com |date=28 October 2020 |archive-date=2 November 2020 |archive-url=https://web.archive.org/web/20201102032056/https://telanganatoday.com/isro-adopts-new-satellite-naming-style-risat-2br2-now-eos-01 |url-status=live}}</ref> They support a wide range of applications including optical, radar and electronic reconnaissance for Indian agencies, city planning, oceanography and environmental studies.<ref name="IRSSaga" />

=== The INSAT series ===
{{Main|Engineering:Indian National Satellite System}}
[[File:STS008-44-611.jpg|thumb|left|INSAT-1B satellite: The broadcasting sector in India is highly dependent on INSAT system.]]
The [[Engineering:Indian National Satellite System|Indian National Satellite System]] (INSAT) is the country's telecommunication system. It is a series of multipurpose [[Astronomy:Geosynchronous satellite|geostationary satellites]] built and launched by ISRO to satisfy the telecommunications, broadcasting, meteorology and search-and-rescue needs. Since the introduction of the first one in 1983, INSAT has become the largest domestic communication system in the [[Earth:Asia-Pacific|Asia-Pacific]] Region. It is a joint venture of DOS, the Department of Telecommunications, India Meteorological Department, All India Radio and Doordarshan. The overall coordination and management of INSAT system rests with the Secretary-level INSAT Coordination Committee.<ref name="INSAT">{{Cite web |title=Communication satellites |url=https://www.isro.gov.in/spacecraft/communication-satellites |work=ISRO |access-date=19 March 2021 |archive-date=26 February 2021 |archive-url=https://web.archive.org/web/20210226184331/https://www.isro.gov.in/spacecraft/communication-satellites |url-status=live}}</ref> The nomenclature of the series was changed to "[[Engineering:GSAT|GSAT]]" from "INSAT", then further changed to "CMS" from 2020 onwards.<ref name="THCMS">{{Cite news |date=17 December 2020 |title=ISRO launches India's 42nd communication satellite CMS-01 on-board PSLV-C50 |url=https://m.businesstoday.in/story/isro--to-launch-indias-42nd--communication-satellite-cms01-onboard-pslv-c50/1/425216.html |newspaper=Business Today |access-date=19 March 2021 |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413203459/https://m.businesstoday.in/story/isro--to-launch-indias-42nd--communication-satellite-cms01-onboard-pslv-c50/1/425216.html |url-status=live}}</ref> These satellites have been used by the Indian Armed Forces as well.<ref>{{cite news |url=https://m.economictimes.com/news/defence/navy-to-buy-rs-1589-crore-satellite-from-isro/articleshow/70283927.cms |title=Indian Navy: Navy to buy Rs 1589 crore satellite from ISRO |newspaper=The Economic Times |access-date=19 March 2021 |last1=Pubby |first1=Manu |archive-date=17 January 2021 |archive-url=https://web.archive.org/web/20210117195308/https://m.economictimes.com/news/defence/navy-to-buy-rs-1589-crore-satellite-from-isro/articleshow/70283927.cms |url-status=live}}</ref><ref>{{Cite web |title=GSAT-7A |url=https://www.isro.gov.in/launcher/gslv-f11-gsat-7a-mission |work=ISRO |access-date=19 March 2021 |archive-date=22 March 2021 |archive-url=https://web.archive.org/web/20210322211332/https://www.isro.gov.in/launcher/gslv-f11-gsat-7a-mission |url-status=live}}</ref> GSAT-9 or "SAARC Satellite" provides communication services for India's smaller neighbors.<ref>{{Cite web |title=GSAT-9 |url=http://www.isro.gov.in/Spacecraft/gsat-9 |work=ISRO |access-date=19 March 2021 |archive-date=15 April 2021 |archive-url=https://web.archive.org/web/20210415014043/https://www.isro.gov.in/Spacecraft/gsat-9 |url-status=live}}</ref>

=== Gagan Satellite Navigation System ===
The Ministry of Civil Aviation has decided to implement an indigenous Satellite-Based Regional GPS Augmentation System also known as [[Engineering:GNSS augmentation|Space-Based Augmentation System (SBAS)]] as part of the Satellite-Based Communications, Navigation, Surveillance and Air Traffic Management plan for civil aviation. The Indian SBAS system has been given the acronym [[Earth:GPS-aided GEO augmented navigation|GAGAN – GPS Aided GEO Augmented Navigation]]. A national plan for satellite navigation including implementation of a Technology Demonstration System (TDS) over Indian airspace as a [[Proof of concept|proof of concept]] has been prepared jointly by Airports Authority of India and ISRO. The TDS was completed during 2007 with the installation of eight Indian Reference Stations at different airports linked to the Master Control Centre located near Bengaluru.<ref>{{Cite web |url=https://timesofindia.indiatimes.com/blogs/mindfly/ensuring-safety-and-reliabity-through-indigenous-satellite-navigation-system-gagan/ |title=Ensuring safety and reliabity through indigenous satellite navigation system GAGAN |date=12 January 2019 |website=Times of India Blog |language=en-US |access-date=19 March 2021 |archive-date=4 May 2019 |archive-url=https://web.archive.org/web/20190504121357/https://timesofindia.indiatimes.com/blogs/mindfly/ensuring-safety-and-reliabity-through-indigenous-satellite-navigation-system-gagan/ |url-status=live}}</ref>

=== Navigation with Indian Constellation (NavIC) ===
{{Main|Astronomy:Indian Regional Navigation Satellite System}}
[[File:IRNSS Coverage Polygon.png|alt=|thumb|Coverage of the IRNSS in blue, as of 2020]]
[[Astronomy:Indian Regional Navigation Satellite System|IRNSS]] with an operational name NavIC is an independent regional navigation satellite system developed by India. It is designed to provide accurate position information service to users in India as well as the region extending up to {{cvt|1500|km}} from its borders, which is its primary service area. IRNSS provides two types of services, namely, Standard Positioning Service (SPS) and Restricted Service (RS), providing a position accuracy of better than {{cvt|20|m}} in the primary service area.<ref>{{cite web |title=Navigation Satellite |url=http://isro.org/satellites/navigationsatellites.aspx |publisher=ISRO |access-date=26 January 2014 |archive-url=https://web.archive.org/web/20131023005513/http://www.isro.org/satellites/navigationsatellites.aspx |archive-date=23 October 2013 |url-status=dead}}</ref>

=== Other satellites ===
{{Dynamic list|date=March 2021}}
Kalpana-1 (MetSat-1) was ISRO's first dedicated meteorological satellite.<ref>{{cite web |url=http://www.eoportal.org/directory/pres_Kalpana1MetSat1MeteorologicalSatellite1.html |title=eoPortal directory: Kalpana-1/MetSat-1 (Meteorological Satellite-1) |publisher=Eoportal.org |access-date=11 March 2011 |url-status=dead |archive-url=https://archive.today/20120908092933/http://www.eoportal.org/directory/pres_Kalpana1MetSat1MeteorologicalSatellite1.html |archive-date=8 September 2012}}</ref><ref>{{cite web |url=http://www.indiaonline.in/Profile/Science/research/Space-Technology.aspx |title=Space Technology in India &#124; Indian Space Research Organisation (ISRO) |publisher=Indiaonline.in |access-date=11 March 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110721162412/http://www.indiaonline.in/Profile/Science/research/Space-Technology.aspx |archive-date=21 July 2011}}</ref> Indo-French satellite [[Engineering:SARAL|SARAL]] on 25 February 2013. SARAL (or "Satellite with ARgos and AltiKa") is a cooperative altimetry technology mission, used for monitoring the oceans' surface and sea levels. AltiKa measures ocean surface topography with an accuracy of {{cvt|8|mm}}, compared to {{cvt|2.5|cm}} on average using altimeters, and with a spatial resolution of {{cvt|2|km}}.<ref name=iex25f13>{{cite news |title=India successfully launches Indo-French, 6 foreign satellites |url=http://www.indianexpress.com/news/india-successfully-launches-indofrench-6-foreign-satellites/1079446/0 |access-date=25 February 2013 |newspaper=The Indian Express |date=25 February 2013 |archive-url=https://web.archive.org/web/20130301034013/http://www.indianexpress.com/news/india-successfully-launches-indofrench-6-foreign-satellites/1079446/0 |archive-date=1 March 2013 |url-status=live}}</ref><ref>{{cite web |url=http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/sara_general.html |title=Satellite SARAL |publisher=Ilrs.gsfc.nasa.gov |access-date=24 July 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120705114650/http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/sara_general.html |archive-date=5 July 2012}}</ref>

== Launch vehicles ==
[[File:Indian carrier rockets.svg|thumb|300 px|Comparison of Indian carrier rockets. Left to right: [[Astronomy:Satellite Launch Vehicle|SLV]], ASLV, PSLV, GSLV, LVM3]]
During the 1960s and 1970s, India initiated its own launch vehicles owing to geopolitical and economic considerations. In the 1960s–1970s, the country developed a sounding rocket, and by the 1980s, research had yielded the Satellite Launch Vehicle-3 and the more advanced [[Astronomy:Augmented Satellite Launch Vehicle|Augmented Satellite Launch Vehicle]] (ASLV), complete with operational supporting infrastructure.{{sfn|Gupta|Suresh|Sivan|2007|p=1697}}

=== Satellite Launch Vehicle ===
{{Main|Astronomy:Satellite Launch Vehicle}}
[[File:Stamp of India - 1981 - Colnect 505879 - Launch of Rohini Satellite.jpeg|thumb|Stamp depicting SLV-3 D1 carrying [[Engineering:Rohini (satellite)|RS-D1]] satellite to orbit]]
The Satellite Launch Vehicle (known as SLV-3) was the first space rocket to be developed by India. The initial launch in 1979 was a failure followed by a successful launch in 1980 making India the sixth country in world with orbital launch capability. The development of bigger rockets began afterwards.<ref name="SLVFlipbook" />

=== Augmented Satellite Launch Vehicle ===
{{Main|Astronomy:Augmented Satellite Launch Vehicle}}

Augmented or Advanced Satellite Launch Vehicle (ASLV) was another small launch vehicle released in 1980s to develop technologies required to place satellites into [[Astronomy:Geostationary orbit|geostationary orbit]]. ISRO did not have adequate funds to develop ASLV and PSLV at once. Since ASLV suffered repeated failures, it was dropped in favour of a new project.<ref name="bharat-rakshak.com">{{cite web |url=http://www.bharat-rakshak.com/SPACE/space-launchers-aslv.html |title=Augumented Satellite Launch Vehicle |access-date=19 July 2009 |url-status=dead |archive-url=https://web.archive.org/web/20090829151541/http://www.bharat-rakshak.com/SPACE/space-launchers-aslv.html |archive-date=29 August 2009}}</ref><ref name=ITASLV />

=== Polar Satellite Launch Vehicle ===
{{Main|Engineering:Polar Satellite Launch Vehicle}}
[[File:PSLV-C11 launch2.jpg|thumb|PSLV-C11 lifts off carrying Chandrayaan-1, first Indian mission to the moon.]]
Polar Satellite Launch Vehicle or PSLV is the first [[Engineering:Medium-lift launch vehicle|medium-lift launch vehicle]] from India which enabled India to launch all its remote-sensing satellites into [[Astronomy:Sun-synchronous orbit|Sun-synchronous orbit]]. PSLV had a failure in its maiden launch in 1993. Besides two other partial failures, PSLV has become the primary workhorse for ISRO with more than 50 launches placing hundreds of Indian and foreign satellites into orbit.<ref>{{cite web |title=PSLV (1) |url=http://space.skyrocket.de/doc_lau_det/pslv_1.htm |publisher=Gunter's Space Page |access-date=21 March 2021 |archive-date=5 December 2020 |archive-url=https://web.archive.org/web/20201205170455/https://space.skyrocket.de/doc_lau_det/pslv_1.htm |url-status=live}}</ref>

Decade-wise summary of PSLV launches:
{| class="wikitable"
|-
! Decade
! Successful
! Partial success
! Failure
! Total
|-
|1990s
| 3
| 1
| 1
| 5
|-
| 2000s
| 11
| 0
| 0
| 11
|-
| 2010s
| 33
| 0
| 1
| 34
|-
| 2020s
| 10
| 0
| 0
| 10
|-
| Total
| 57
| 1
| 2
| 60
|}

=== Geosynchronous Satellite Launch Vehicle ===
{{Main|Engineering:Geosynchronous Satellite Launch Vehicle}}
[[File:GSLV-F08 Liftoff 5.jpg|thumb|GSLV-F08 launches [[Engineering:GSAT-6A|GSAT-6A]] into geostationary transfer orbit (2018).]]
[[Engineering:Geosynchronous Satellite Launch Vehicle|Geosynchronous Satellite Launch Vehicle]] was envisaged in 1990s to transfer significant payloads to geostationary orbit. ISRO initially had a great problem realising GSLV as the development of CE-7.5 in India took a decade. The US had blocked India from obtaining cryogenic technology from Russia, leading India to develop its own cryogenic engines.<ref name=flGSLVQuest />

Decade-wise summary of GSLV Launches:
{| class="wikitable"
|-
! Decade
! Successful
! Partial success
! Failure
! Total
|-
| 2000s
| 2
| 2
| 1
| 5
|-
| 2010s
| 6
| 0
| 2
| 8
|-
| 2020s
| 1
| 0
| 1
| 2
|-
| Total
| 9
| 2
| 4
| 15
|}

=== Launch Vehicle Mark-3 ===
{{Main|Engineering:LVM3}}
[[File:LVM3 M4, Chandrayaan-3 - Launch vehicle lifting off from the Second Launch Pad (SLP) of SDSC-SHAR, Sriharikota 03.webp|thumb|LVM3 M4 lifting off from SDSC SLP, carrying Chandrayaan-3 (2023)]]
Launch Vehicle Mark-3 (LVM3), previously known as GSLV Mk III, is the heaviest rocket in operational service with ISRO. Equipped with a more powerful cryogenic engine and boosters than GSLV, it has significantly higher payload capacity and allows India to launch all its communication satellites.<ref>{{cite web |date=15 November 2018 |url=https://www.hindustantimes.com/india-news/india-masters-rocket-science-with-isro-sucessfully-launching-gsat-29-satellite/story-m72QQBzx7fxEYLyyoMRgPI.html |title='India masters rocket science': Here's why the new ISRO launch is special |newspaper=Hindustan Times |access-date=19 March 2021 |archive-date=15 November 2018 |archive-url=https://web.archive.org/web/20181115195243/https://www.hindustantimes.com/india-news/india-masters-rocket-science-with-isro-sucessfully-launching-gsat-29-satellite/story-m72QQBzx7fxEYLyyoMRgPI.html |url-status=live}}</ref> LVM3 is expected to carry [[Engineering:Gaganyaan|India's first crewed mission to space]]<ref>{{cite news |title=Gaganyaan: Isro's unmanned space mission for December 2020 likely to be delayed |url=https://wap.business-standard.com/article-amp/current-affairs/gaganyaan-isro-s-unmanned-space-mission-for-dec-2020-likely-to-be-delayed-120081600635_1.html |newspaper=Business Standard |date=16 August 2020 |access-date=19 March 2021 |via=Press Trust of India |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413203718/https://wap.business-standard.com/article-amp/current-affairs/gaganyaan-isro-s-unmanned-space-mission-for-dec-2020-likely-to-be-delayed-120081600635_1.html |url-status=live}}</ref> and will be the testbed for SCE-200 engine which will power India's [[Engineering:Heavy-lift launch vehicle|heavy-lift rockets]] in the future.<ref name="Episode 90">{{Cite web |title=Episode 90 – An update on ISRO's activities with S Somanath and R Umamaheshwaran |url=https://astrotalkuk.org/episode-90-an-update-on-isros-activities-with-s-somanath-and-r-umamaheshwaran/ |date=24 October 2019 |access-date=19 March 2021 |publisher=AstrotalkUK |archive-date=29 October 2019 |archive-url=https://web.archive.org/web/20191029030030/https://astrotalkuk.org/episode-90-an-update-on-isros-activities-with-s-somanath-and-r-umamaheshwaran/ |url-status=live}}</ref>

Decade-wise summary of LVM3 launches:
{| class="wikitable"
|-
! Decade
! Successful
! Partial success
! Failure
! Total
|-
| 2010s
| 4
| 0
| 0
| 4<ref>{{cite web |url=https://www.isro.gov.in/update/14-nov-2018/gslv-mkiii-d2-successfully-launches-gsat-29 |title=GSLV MkIII-D2 successfully launches GSAT-29 |publisher=ISRO |access-date=14 November 2018 |archive-url=https://web.archive.org/web/20181114224155/https://www.isro.gov.in/update/14-nov-2018/gslv-mkiii-d2-successfully-launches-gsat-29 |archive-date=14 November 2018 |url-status=live}}</ref>
|-
| 2020s
| 3
| 0
| 0
| 3<ref>{{cite web |title=ISRO launches LVM3-M3 OneWeb India-2 mission with 36 satellites; all you need to know |url=https://www.livemint.com/news/india/isro-lvm-iii-rocket-with-36-oneweb-satellites-launch-11679790470686.html |website=MINT |date=26 March 2023 |access-date=26 March 2023 |archive-date=26 March 2023 |archive-url=https://web.archive.org/web/20230326010816/http://www.livemint.com/news/india/isro-lvm-iii-rocket-with-36-oneweb-satellites-launch-11679790470686.html |url-status=live }}</ref>
|-
| Total
| 7
| 0
| 0
| 7
|}

=== Small Satellite Launch Vehicle ===
{{Main|Engineering:Small Satellite Launch Vehicle}}
[[File:Mrm7669 Launch of SSLV-D1 from Satish Dhawan FLP.jpg|thumb|SSLV D1 lifting off from SDSC FLP]]
The '''Small Satellite Launch Vehicle''' ('''SSLV''') is a [[Engineering:Small-lift launch vehicle|small-lift launch vehicle]] developed by the ISRO with payload capacity to deliver {{cvt|500|kg}} to [[Astronomy:Low Earth orbit|low Earth orbit]] ({{cvt|500|km}}) or {{cvt|300|kg}} to [[Astronomy:Sun-synchronous orbit|Sun-synchronous orbit]] ({{cvt|500|km}})<ref name=SSLV_UMv2>{{cite web |url=http://nsilindia.co.in/sites/default/files/u1/SSLV%20Technical%20Brochure%20V12.pdf |title=SSLV technical brochure V12 |date=20 December 2019 |url-status=live |archive-url=https://web.archive.org/web/20191220153651/http://nsilindia.co.in/sites/default/files/u1/SSLV%20Technical%20Brochure%20V12.pdf |archive-date=20 December 2019 |access-date=20 December 2019}}</ref> for launching small satellites, with the capability to support multiple orbital drop-offs.<ref>Gunter's space page: [https://space.skyrocket.de/doc_lau/sslv.htm SSLV] {{Webarchive|url=https://web.archive.org/web/20180817092258/https://space.skyrocket.de/doc_lau/sslv.htm |date=17 August 2018 }}</ref><ref name=":1b">{{cite web |url=https://space.skyrocket.de/doc_lau/sslv.htm |title=SSLV |website=space.skyrocket.de |access-date=2018-12-09 |archive-date=17 August 2018 |archive-url=https://web.archive.org/web/20180817092258/https://space.skyrocket.de/doc_lau/sslv.htm |url-status=live }}</ref><ref name="DoS_20190118">{{cite web |url=http://pibphoto.nic.in/documents/rlink/2019/jan/p201911802.pdf |title=Department of Space presentation on 18 January 2019 |date=18 January 2019 |access-date=30 January 2019 |archive-date=30 January 2019 |archive-url=https://web.archive.org/web/20190130053353/http://pibphoto.nic.in/documents/rlink/2019/jan/p201911802.pdf |url-status=live }}</ref>

Decade-wise summary of SSLV launches:
{| class="wikitable"
|-
! Decade
! Successful
! Partial success
! Failure
! Total
|-
| 2020s
| 1
| 0
| 1
| 2
|}

== Human Spaceflight Programme ==
{{Main|Astronomy:Indian Human Spaceflight Programme|Engineering:Gaganyaan}}
The first proposal to send humans into space was discussed by ISRO in 2006, leading to work on the required infrastructure and spacecraft.<ref>{{Cite news |date=7 November 2006 |title=Scientists Discuss Indian Manned Space Mission |url=https://www.isro.gov.in/update/07-nov-2006/scientists-discuss-indian-manned-space-mission |work=ISRO |access-date=20 March 2021 |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413203522/https://www.isro.gov.in/update/07-nov-2006/scientists-discuss-indian-manned-space-mission |url-status=live}}</ref><ref>{{cite news |url=http://www.hindu.com/thehindu/holnus/008200708091621.htm |title=ISRO considering manned space mission: Nair |work=The Hindu |location=Chennai, India |date=9 August 2007 |access-date=20 March 2021 |archive-date=30 September 2007 |archive-url=https://web.archive.org/web/20070930220809/http://www.hindu.com/thehindu/holnus/008200708091621.htm |url-status=live}}</ref> The trials for crewed space missions began in 2007 with the {{convert|600|kg|lb|adj=on}} [[Engineering:Space Capsule Recovery Experiment|Space Capsule Recovery Experiment]] (SRE), launched using the [[Engineering:Polar Satellite Launch Vehicle|Polar Satellite Launch Vehicle]] (PSLV) rocket, and safely returned to earth 12 days later.<ref>{{Cite web |url=http://www.aprsaf.org/data/aprsaf14_data/day1/SEU10_SRE%20slides%20for%20web.pdf |title=Space Capsule Recovery Experiment(SRE) |date=21 November 2007 |archive-url=https://web.archive.org/web/20131224103000/http://www.aprsaf.org/data/aprsaf14_data/day1/SEU10_SRE%20slides%20for%20web.pdf |archive-date=24 December 2013 |access-date=20 March 2021}}</ref>

In 2009, the Indian Space Research Organisation proposed a budget of {{INRConvert|124|b|lk=on|year=2009}} for its human spaceflight programme. An uncrewed demonstration flight was expected after seven years from the final approval and a crewed mission was to be launched after seven years of funding.<ref>{{cite web |url=http://www.indianexpress.com/news/plan-panel-okays-isro-manned-space-flight/426945/ |title=Plan panel okays ISRO manned space flight |work=The Indian Express |date=23 February 2009 |access-date=11 March 2011 |archive-url=https://web.archive.org/web/20090607014311/http://www.indianexpress.com/news/plan-panel-okays-isro-manned-space-flight/426945 |archive-date=7 June 2009 |url-status=live}}</ref> A crewed mission initially was not a priority and left on the backburner for several years.<ref>{{Cite news |url=https://www.outlookindia.com/magazine/story/satellites-are-our-priority-now-not-human-space-flight/299103 |title=Satellites Are Our Priority Now, Not Human Space Flight |work=Outlook |date=15 July 2017 |access-date=20 March 2021 |archive-date=29 October 2021 |archive-url=https://web.archive.org/web/20211029191931/https://www.outlookindia.com/magazine/story/satellites-are-our-priority-now-not-human-space-flight/299103 |url-status=live}}</ref> A [[Engineering:Crew Module Atmospheric Re-entry Experiment|space capsule recovery experiment]] in 2014<ref>{{Cite news |url=http://www.thehindu.com/sci-tech/science/india-successfully-test-fires-gslv-markiii-its-heaviest-rocket/article6703691.ece |title=GSLV Mark III takes to the skies in test flight |newspaper=The Hindu |date=18 December 2014 |access-date=7 September 2018 |archive-url=https://web.archive.org/web/20170602005710/http://www.thehindu.com/sci-tech/science/india-successfully-test-fires-gslv-markiii-its-heaviest-rocket/article6703691.ece |archive-date=2 June 2017 |url-status=live |last1=Kandavel |first1=Sangeetha}}</ref><ref>{{cite web |url=http://economictimes.indiatimes.com/news/science/india-to-launch-unmanned-crew-module-in-december/articleshow/44987199.cms |title=India to launch unmanned crew module in December |work=The Economic Times |date=30 October 2014 |access-date=20 March 2021 |archive-url=https://web.archive.org/web/20141102044330/http://economictimes.indiatimes.com/news/science/india-to-launch-unmanned-crew-module-in-december/articleshow/44987199.cms |archive-date=2 November 2014 |url-status=live}}</ref> and a pad abort test in 2018<ref>{{cite news |url=https://www.thehindu.com/sci-tech/technology/isros-first-pad-abort-test-successful/article24336860.ece |title=ISRO's first 'pad abort' test, critical for future human space mission, successful |newspaper=The Hindu |date=5 July 2018 |access-date=15 August 2018 |via=www.thehindu.com |archive-url=https://web.archive.org/web/20180705205114/https://www.thehindu.com/sci-tech/technology/isros-first-pad-abort-test-successful/article24336860.ece |archive-date=5 July 2018 |url-status=live}}</ref> were followed by Prime Minister Narendra Modi's announcement in his 2018 Independence Day address that India will send astronauts into space by 2022 on the new ''[[Engineering:Gaganyaan|Gaganyaan]]'' spacecraft.<ref>{{cite news |url=https://www.thehindu.com/news/national/gaganyaan-mission-to-take-indian-astronaut-to-space-by-2022-pm-modi/article24695817.ece |title=Gaganyaan mission to take Indian astronaut to space by 2022: PM Modi |newspaper=The Hindu |date=15 August 2018 |access-date=15 August 2018 |via=www.thehindu.com |archive-date=27 April 2021 |archive-url=https://web.archive.org/web/20210427090426/https://www.thehindu.com/news/national/gaganyaan-mission-to-take-indian-astronaut-to-space-by-2022-pm-modi/article24695817.ece |url-status=live}}</ref> To date, ISRO has developed most of the technologies needed, such as the crew module and crew escape system, space food, and life support systems. The project would cost less than {{INR}}100&nbsp;billion (US$1.3 billion) and would include sending two or three Indians to space, at an altitude of {{cvt|300|-|400|km}}, for at least seven days, using a GSLV Mk-III launch vehicle.<ref>{{cite web |url=https://www.ndtv.com/india-news/india-plans-to-put-man-in-space-for-7-days-says-indian-space-research-organisation-chairman-k-sivan-1900888 |title=Indian Astronaut Will Be in Space For 7 Days, Confirms ISRO Chairman |access-date=15 August 2018 |archive-url=https://web.archive.org/web/20180815151504/https://www.ndtv.com/india-news/india-plans-to-put-man-in-space-for-7-days-says-indian-space-research-organisation-chairman-k-sivan-1900888 |archive-date=15 August 2018 |url-status=live}}</ref><ref>{{cite web |url=https://www.thenewsminute.com/article/jfk-1961-modi-2018-pm-announces-indian-space-2022-isro-ready-86635?amp |title=JFK in 1961, Modi in 2018: PM announces 'Indian in space by 2022,' but is ISRO ready? |date=15 August 2018 |access-date=15 August 2018 |archive-url=https://web.archive.org/web/20180815201219/https://www.thenewsminute.com/article/jfk-1961-modi-2018-pm-announces-indian-space-2022-isro-ready-86635?amp |archive-date=15 August 2018 |url-status=live}}</ref>

=== Astronaut training and other facilities ===
The newly established [[Astronomy:Human Space Flight Centre|Human Space Flight Centre]] (HSFC) will coordinate the IHSF campaign.<ref>{{Cite news |url=https://www.thehindu.com/sci-tech/science/isro-announces-human-space-flight-centre/article25967944.ece |title=ISRO starts Human Space Flight centre |last=Ds |first=Madhumathi |date=11 January 2019 |work=The Hindu |access-date=11 January 2019 |language=en-IN |issn=0971-751X |archive-url=https://web.archive.org/web/20190531074335/https://www.thehindu.com/sci-tech/science/isro-announces-human-space-flight-centre/article25967944.ece |archive-date=31 May 2019 |url-status=live}}</ref><ref>{{Cite web |url=https://www.isro.gov.in/update/30-jan-2019/inauguration-of-human-space-flight-centre-hsfc |title=Inauguration of Human Space Flight Centre (HSFC) – ISRO |website=www.isro.gov.in |access-date=8 March 2019 |archive-url=https://web.archive.org/web/20190329015418/https://www.isro.gov.in/update/30-jan-2019/inauguration-of-human-space-flight-centre-hsfc |archive-date=29 March 2019 |url-status=live}}</ref> ISRO will set up an astronaut training centre in Bengaluru to prepare personnel for flights in the crewed vehicle. It will use simulation facilities to train the selected astronauts in rescue and recovery operations and survival in microgravity, and will undertake studies of the radiation environment of space. ISRO had to build [[Physics:High-G training|centrifuges]] to prepare astronauts for the acceleration phase of the launch. Existing launch facilities at [[Astronomy:Satish Dhawan Space Centre|Satish Dhawan Space Centre]] will have to be upgraded for the Indian human spaceflight campaign.<ref>{{Cite web |url=http://www.newindianexpress.com/nation/2018/nov/15/indias-human-space-programme-gets-a-fillip-1898396.html |title=India's human space programme gets a fillip |website=The New Indian Express |access-date=11 January 2019 |quote=Initially, the plan was the construct a new launch pad for the human space flight, but Sivan told the Express that due to paucity of time one of the two existing launch pads is being modified to meet the requirement. |archive-url=https://web.archive.org/web/20190112095045/http://www.newindianexpress.com/nation/2018/nov/15/indias-human-space-programme-gets-a-fillip-1898396.html |archive-date=12 January 2019 |url-status=live}}</ref> [[Astronomy:Human Space Flight Centre|Human Space Flight Centre]] and [[Company:Glavcosmos|Glavcosmos]] signed an agreement on 1 July 2019 for the selection, support, medical examination and space training of Indian astronauts.<ref>{{Cite web |url=https://timesofindia.indiatimes.com/india/its-official-india-picks-russia-to-pick-train-astronauts/articleshow/70031169.cms |title=Gaganyaan: India chooses Russia to pick & train astronauts |date=1 July 2019 |website=The Times of India |language=en |access-date=1 August 2019 |archive-url=https://web.archive.org/web/20190723221603/https://timesofindia.indiatimes.com/india/its-official-india-picks-russia-to-pick-train-astronauts/articleshow/70031169.cms |archive-date=23 July 2019 |url-status=live}}</ref> An ISRO Technical Liaison Unit (ITLU) was to be set up in [[Place:Moscow|Moscow]] to facilitate the development of some key technologies and establishment of special facilities which are essential to support life in space.<ref>{{Cite web |url=https://timesofindia.indiatimes.com/india/isro-will-set-up-unit-in-moscow-to-develop-technology-needed-for-gaganyaan-mission/articleshow/70471565.cms |title=Isro will set up unit in Moscow to develop technology needed for Gaganyaan mission |last=Singh |first=Surendra |date=31 July 2019 |website=The Times of India |language=en |access-date=1 August 2019 |archive-url=https://web.archive.org/web/20190820164300/https://timesofindia.indiatimes.com/india/isro-will-set-up-unit-in-moscow-to-develop-technology-needed-for-gaganyaan-mission/articleshow/70471565.cms |archive-date=20 August 2019 |url-status=live}}</ref> Four {{wipe|Indian Air Force}} personnel finished training at [[Company:Yuri Gagarin Cosmonaut Training Center|Yuri Gagarin Cosmonaut Training Center]] in March 2021.<ref name="Trainingok">{{Cite news |last=Kumar |first=Chethan |date=19 March 2021 |title=Gaganyaan: Astronauts clear all tests, Russia training to end this month |url=https://m.timesofindia.com/india/astronauts-clear-all-tests-russia-training-to-end-this-month/articleshow/81575438.cms |newspaper=The Times of India |access-date=21 March 2021 |archive-date=21 March 2021 |archive-url=https://web.archive.org/web/20210321182558/https://m.timesofindia.com/india/astronauts-clear-all-tests-russia-training-to-end-this-month/articleshow/81575438.cms |url-status=live}}</ref>

=== Crewed spacecraft ===
{{Main|Engineering:Gaganyaan}}
ISRO is working towards an [[Engineering:Orbital spaceflight|orbital]] crewed spacecraft that can operate for seven days in [[Astronomy:Low Earth orbit|low Earth orbit]]. The spacecraft, called ''[[Engineering:Gaganyaan|Gaganyaan]]'', will be the basis of the [[Astronomy:Indian Human Spaceflight Programme|Indian Human Spaceflight Programme]]. The spacecraft is being developed to carry up to three people, and a planned upgraded version will be equipped with a rendezvous and docking capability. In its first crewed mission, ISRO's largely autonomous {{convert|3|t|ST LT|adj=on}} spacecraft will orbit the Earth at {{cvt|400|km}} altitude for up to seven days with a two-person crew on board. A source in April 2023 suggested that ISRO was aiming for a 2025 launch.<ref>{{Cite news |last=Dutt |first=Anonna |date=2023-04-09 |title=Gaganyaan: From astronauts' training to tech upgrade, ISRO making leaps to meet 2025 target for manned mission |url=https://indianexpress.com/article/india/gaganyaan-from-astronauts-training-to-tech-upgrade-isro-making-leaps-to-meet-2025-target-for-manned-mission-8546259/ |access-date=2023-08-08 |work=The Indian Express |language=en-IN |archive-date=6 July 2023 |archive-url=https://web.archive.org/web/20230706003805/https://indianexpress.com/article/india/gaganyaan-from-astronauts-training-to-tech-upgrade-isro-making-leaps-to-meet-2025-target-for-manned-mission-8546259/ |url-status=live }}</ref>

=== Space station{{anchor|Space Station}} ===
India plans to build a space station as a follow-up programme to ''[[Engineering:Gaganyaan|Gaganyaan]]''. ISRO chairman K. Sivan has said that India will not join the [[Astronomy:International Space Station programme|International Space Station programme]] and will instead build a {{convert|20|t|ST LT|adj=on}} space station on its own.<ref>{{Cite news |url=https://economictimes.indiatimes.com/news/science/india-planning-to-have-own-space-station-isro-chief/articleshow/69771669.cms |title=India planning to have own space station: ISRO chief |date=13 June 2019 |work=The Economic Times |access-date=21 July 2019 |archive-url=https://web.archive.org/web/20190702043332/https://economictimes.indiatimes.com/news/science/india-planning-to-have-own-space-station-isro-chief/articleshow/69771669.cms |archive-date=2 July 2019 |url-status=live}}</ref><ref>{{Cite web |url=https://timesofindia.indiatimes.com/india/india-to-have-its-own-space-station-isro/articleshow/69775360.cms |title=India's own space station to come up in 5–7 years: Isro chief |date=13 June 2019 |website=The Times of India |language=en |access-date=22 July 2019 |archive-url=https://web.archive.org/web/20190804044046/https://timesofindia.indiatimes.com/india/india-to-have-its-own-space-station-isro/articleshow/69775360.cms |archive-date=4 August 2019 |url-status=live}}</ref> It is expected to be placed in a low Earth orbit at {{convert|400|km}} altitude and be capable of harbouring three humans for 15{{ndash}}20 days. The rough time-frame is five to seven years after completion of the ''Gaganyaan'' project.<ref>{{Cite news |url=https://timesofindia.indiatimes.com/india/indias-space-station-likely-to-have-space-for-three/articleshow/71828669.cms |title=India's space station likely to have space for three |date=31 October 2019 |work=The Times of India |access-date=1 November 2019 |archive-date=31 October 2019 |archive-url=https://web.archive.org/web/20191031235228/https://timesofindia.indiatimes.com/india/indias-space-station-likely-to-have-space-for-three/articleshow/71828669.cms |url-status=live}}</ref><ref>{{Cite news |url=https://www.thehindu.com/sci-tech/science/india-to-have-a-separate-space-station-isro/article27898707.ece |title=India to have its own space station: ISRO |last=Peri |first=Dinakar |date=13 June 2019 |work=The Hindu |access-date=1 November 2019 |language=en-IN |issn=0971-751X |quote=Giving out broad contours of the planned space station, Dr. Sivan said it has been envisaged to weigh 20 tonnes and will be placed in an orbit of 400&nbsp;km above earth where astronauts can stay for 15-20 days. The time frame is 5-7 years after Gaganyaan, he stated. |archive-date=10 August 2019 |archive-url=https://web.archive.org/web/20190810173302/https://www.thehindu.com/sci-tech/science/india-to-have-a-separate-space-station-isro/article27898707.ece |url-status=live}}</ref>

As per S. Somanath, the Phase1 will be ready by 2028 and the entire space station will be completed by 2035. The space station will be an international platform for colaborative research on future interplanetary missions, microgravity studies, space biology, medicine and research.<ref name=":1" />

== Planetary sciences and astronomy ==
ISRO and Tata Institute of Fundamental Research have operated a balloon launch base at Hyderabad since 1967.<ref name="ISRO balloon" /> Its proximity to the geo-magnetic equator,<ref>{{cite web |url=http://stratocat.com.ar/bases/31e.htm |title=Stratospheric balloon launch bases and sites |publisher=StratoCat |access-date=4 November 2015 |archive-url=https://web.archive.org/web/20160303170531/http://stratocat.com.ar/bases/31e.htm |archive-date=3 March 2016 |url-status=live}}</ref> where both primary and secondary [[Astronomy:Cosmic ray|cosmic ray]] fluxes are low, makes it an ideal location to study diffuse cosmic X-ray background.<ref name="ISRO balloon">{{cite web |url=http://www.isro.org/space_science/images/BalloonXrayStudies.htm |title=Balloon X-ray astronomy experiments from India |access-date=17 March 2009 |url-status=dead |archive-url=https://web.archive.org/web/20020528045243/http://www.isro.org/space_science/images/BalloonXrayStudies.htm |archive-date=28 May 2002}}</ref>

ISRO played a role in the discovery of three species of bacteria in the upper stratosphere at an altitude between {{cvt|20|-|40|km}}. The bacteria, highly resistant to ultra-violet radiation, are not found elsewhere on Earth, leading to speculation on whether they are extraterrestrial in origin.<ref>{{cite journal |last1=Harris |first1=Melanie J. |last2=Wickramasinghe |first2=N.C. |last3=Lloyd |first3=David |display-authors=0 |year=2002 |issue=Instruments, Methods, and Missions for Astrobiology IV |doi=10.1117/12.454758 |journal=Proc. SPIE |volume=4495 |title=Detection of living cells in stratospheric samples |page=192 |series=Instruments, Methods, and Missions for Astrobiology IV |url=http://repository.iucaa.in:8080/jspui/bitstream/11007/1631/1/295aB_2002.pdf |access-date=21 September 2019 |archive-url=https://web.archive.org/web/20170922023031/http://repository.iucaa.in:8080/jspui/bitstream/11007/1631/1/295aB_2002.pdf |archive-date=22 September 2017 |url-status=live |bibcode=2002SPIE.4495..192H |s2cid=129736236}}</ref> They are considered [[Earth:Extremophile|extremophile]]s, and named as ''Bacillus isronensis'' in recognition of ISRO's contribution in the balloon experiments, which led to its discovery, ''Bacillus aryabhata'' after India's celebrated ancient astronomer Aryabhata and ''[[Biology:Janibacter hoylei|Janibacter hoylei]]'' after the distinguished astrophysicist [[Biography:Fred Hoyle|Fred Hoyle]].<ref>{{cite journal |last1=Shivaji |first1=S. |last2=Chaturvedi |first2=P. |last3=Begum |first3=Z. |display-authors=0 |year=2009 |title=''Janibacter hoylei'' sp.nov., ''Bacillus isronensis'' sp.nov. and ''Bacillus aryabhattai'' sp.nov. isolated from cryotubes used for collecting air from the upper atmosphere |journal=International Journal of Systematic and Evolutionary Microbiology |volume=59 |issue=12 |pages=2977–2986 |doi=10.1099/ijs.0.002527-0 |pmid=19643890 |doi-access=free}}</ref>

=== Astrosat ===
{{Main|Astronomy:Astrosat}}
[[File:Astrosat-1 in deployed configuration.png|thumb|Astrosat-1 in deployed configuration]]
Launched in 2015, Astrosat is India's first dedicated multi-wavelength space observatory. Its observation study includes active galactic nuclei, hot white dwarfs, pulsations of pulsars, binary star systems, and [[Astronomy:Supermassive black hole|supermassive black hole]]s located at the centre of the [[Astronomy:Galaxy|galaxy]].<ref>{{Cite web |url=https://www.isro.gov.in/update/28-sep-2018/three-years-of-astrosat |title=Three years of AstroSat – ISRO |website=www.isro.gov.in |language=en |access-date=28 September 2018 |archive-url=https://web.archive.org/web/20190830213436/http://isro.gov.in/update/28-sep-2018/three-years-of-astrosat |archive-date=30 August 2019 |url-status=live}}</ref>
=== XPoSat ===
{{Main|Astronomy:XPoSat}}
[[File:PSLV-C58,_XPoSat_-_Render_of_XPoSat_satellite_in_deployed_configuration.png|thumb|XPoSat]]
The '''X-ray Polarimeter Satellite''' ('''XPoSat''') is a satellite for studying [[Physics:Polarization (waves)|polarisation]].<ref>{{cite web |last=Dutt |first=Anonna |date=17 September 2021 |url=https://www.hindustantimes.com/india-news/indias-first-solar-mission-likely-to-launch-next-year-isro-101631860455183.html |title='India's first solar mission likely to launch next year': ISRO |work=The Hindustan Times |access-date=18 September 2021 |archive-date=17 September 2021 |archive-url=https://web.archive.org/web/20210917230256/https://www.hindustantimes.com/india-news/indias-first-solar-mission-likely-to-launch-next-year-isro-101631860455183.html |url-status=live}}</ref><ref name='Annadurai 2019'>{{cite web |url=http://www.unoosa.org/documents/pdf/copuos/2017/copuos2017tech30E.pdf |title=Future Exploration Missions of ISRO |archive-url=https://web.archive.org/web/20180921095058/http://www.unoosa.org/documents/pdf/copuos/2017/copuos2017tech30E.pdf |archive-date=21 September 2018 |publisher=Indian Space Research Organisation (ISRO) |work=Dr. M. Annadurai, director, ISAC, ISRO. UNCOPUOS 60th Session, Vienna, 2019 |access-date=10 December 2021}}</ref> The spacecraft carries the Polarimeter Instrument in X-rays (POLIX) payload which will study the degree and angle of polarisation of bright astronomical [[Physics:X-ray|X-ray]] sources in the energy range 5–30 keV.<ref>{{Cite web |url=https://indianexpress.com/article/technology/science/chandrayaan-2-launched-here-are-future-isro-missions-to-space-5842337/ |title=Chandrayaan 2 launched: Here are future ISRO missions to space |date=22 July 2019 |website=The Indian Express |language=en-IN |access-date=23 July 2019 |archive-url=https://web.archive.org/web/20190726085439/https://indianexpress.com/article/technology/science/chandrayaan-2-launched-here-are-future-isro-missions-to-space-5842337/ |archive-date=26 July 2019 |url-status=live}}</ref> It launched on 1 January 2024 on a [[Engineering:Polar Satellite Launch Vehicle#PSLV-DL|PSLV-DL]] rocket,<ref>{{Cite web |last=Nigam |first=Saumya |date=2023-12-26 |title=ISRO to launch PSLV-C58 with XPoSAT on January 1 to study black holes, neutron stars {{!}} Details |url=https://www.indiatvnews.com/science/isro-to-launch-pslv-c58-with-xposat-on-january-1-to-study-black-holes-neutron-stars-details-2023-12-26-909050 |access-date=2023-12-27 |website=India TV |language=en}}</ref> and it has an expected operational lifespan of at least five years.<ref name='Annadurai 2019'/><ref>{{cite web |url=https://pqals.nic.in/annex/1711/AU5386.pdf |title=Loksabha Q&A|publisher=DEPARTMENT OF SPACE|date=2023-04-05}}</ref>

== Extraterrestrial exploration ==
=== Lunar exploration ===
{{Main|Astronomy:Chandrayaan programme}}
Chandryaan ({{lit|Mooncraft}}) are India's series of lunar exploration spacecraft. The initial mission included an orbiter and controlled impact probe while later missions include landers, rovers and sampling missions.<ref name="Episode 90" /><ref>{{Cite web |title=A mix of young and middle-aged people will train for Gaganyaan |url=https://www.theweek.in/theweek/current/2020/01/24/a-mix-of-young-and-middle-aged-people-will-train-for-gaganyaan.html |website=The Week |language=en |access-date=20 March 2021 |archive-date=28 January 2020 |archive-url=https://web.archive.org/web/20200128073908/https://www.theweek.in/theweek/current/2020/01/24/a-mix-of-young-and-middle-aged-people-will-train-for-gaganyaan.html |url-status=live}}</ref>

;Chandrayaan-1
{{Main|Astronomy:Chandrayaan-1}}
[[File:CY1 2007 (cropped).jpg|thumb|Rendering of Chandrayaan-1 spacecraft]]
Chandrayaan-1 was India's first mission to the Moon. The robotic lunar exploration mission included a lunar orbiter and an impactor called the [[Astronomy:Moon Impact Probe|Moon Impact Probe]]. ISRO launched it using a modified version of the PSLV on 22 October 2008 from Satish Dhawan Space Centre. It entered lunar orbit on 8 November 2008, carrying high-resolution remote sensing equipment for visible, near infrared, and soft and hard X-ray frequencies. During its 312-day operational period (two years were planned), it surveyed the lunar surface to produce a complete map of its chemical characteristics and three-dimensional topography. The polar regions were of special interest, as they had possible ice deposits. Chandrayaan-1 carried 11 instruments: five Indian and six from foreign institutes and space agencies (including [[Organization:National Aeronautics and Space Administration|NASA]], [[Organization:European Space Agency|ESA]], the Bulgarian Academy of Sciences, [[Organization:Brown University|Brown University]] and other European and North American institutions and companies), which were carried for free. The mission team was awarded the [[Organization:American Institute of Aeronautics and Astronautics|American Institute of Aeronautics and Astronautics]] SPACE 2009 award,<ref>{{cite web |url=http://www.domain-b.com/aero/aero_general/20090901_chandrayaan1.html |title=domain-b.com : American astronautics society award for Chandrayaan-1 team |access-date=12 June 2015 |archive-url=https://web.archive.org/web/20150923215805/http://www.domain-b.com/aero/aero_general/20090901_chandrayaan1.html |archive-date=23 September 2015 |url-status=live}}</ref> the [[Astronomy:International Lunar Exploration Working Group|International Lunar Exploration Working Group]]'s International Co-operation award in 2008,<ref>{{cite news |url=http://www.tribuneindia.com/2008/20081201/nation.htm#14 |title=Chandrayaan-1 wins global award |date=30 November 2008 |agency=Tribune News Service |access-date=2 February 2015 |author=Choudhury, Shubhadeep |location=Bangalore |archive-url=https://web.archive.org/web/20140808030908/http://www.tribuneindia.com/2008/20081201/nation.htm#14 |archive-date=8 August 2014 |url-status=live}}</ref> and the [[Organization:National Space Society|National Space Society]]'s 2009 [[Organization:Space Pioneer Awards|Space Pioneer Award]] in the science and engineering category.<ref>{{cite web |url=http://www.nss.org/awards/2009.html |title=NSS awards for 2009 |publisher=National Space Society |access-date=2 February 2015 |archive-url=https://web.archive.org/web/20150202011649/http://www.nss.org/awards/2009.html |archive-date=2 February 2015 |url-status=live}}</ref><ref>{{cite web |url=http://www.nasa.gov/centers/ames/news/features/2010/lcross_award.html |title=NASA's Lunar Impact Mission Honored by National Space Society |publisher=National Aeronautics and Space Administration |date=17 June 2010 |access-date=2 February 2013 |author=Hoover, Rachel |archive-url=https://web.archive.org/web/20130109115404/http://www.nasa.gov/centers/ames/news/features/2010/lcross_award.html |archive-date=9 January 2013 |url-status=live}}</ref>

;Chandrayaan-2
{{Main|Astronomy:Chandrayaan-2}}
[[File:Chandrayaan-2 lander and orbiter integrated module.jpg|thumb|''Vikram'' lander mounted on top of the orbiter of Chandrayaan-2 spacecraft|alt=]]
Chandrayaan-2, the second mission to the Moon, which included an orbiter, a lander and a rover. It was launched on a [[Engineering:LVM3|Geosynchronous Satellite Launch Vehicle Mark III]] (GSLV Mk III) on 22 July 2019, consisting of a lunar orbiter, the Vikram lander, and the Pragyan lunar rover, all developed in India.<ref>{{Cite news |url=https://www.bbc.com/news/world-asia-india-49032603 |title=India launches second Moon mission |date=22 July 2019 |work=British Broadcasting Corporation |access-date=23 July 2019 |url-status=live |archive-url=https://web.archive.org/web/20190822092132/https://www.bbc.com/news/world-asia-india-49032603 |archive-date=22 August 2019 |language=en-GB}}</ref><ref name="gslv3">{{cite news |url=https://timesofindia.indiatimes.com/india/chandrayaan-2-launch-put-off-india-israel-in-lunar-race-for-4th-position/articleshow/65275012.cms |title=Chandrayaan-2 launch put off: India, Israel in lunar race for 4th position |last=Singh |first=Surendra |date=5 August 2018 |work=The Times of India |access-date=15 August 2018 |url-status=live |archive-url=https://web.archive.org/web/20180819060901/https://timesofindia.indiatimes.com/india/chandrayaan-2-launch-put-off-india-israel-in-lunar-race-for-4th-position/articleshow/65275012.cms |archive-date=19 August 2018 |agency=Times News Network}}</ref> It was the first mission meant to explore the little-explored [[Astronomy:Lunar south pole|lunar south pole]] region.<ref>{{Cite web |url=https://www.news18.com/news/india/chandrayaan-2-launch-moon-mission-isro-live-less-than-two-hours-to-go-for-indias-second-date-with-the-moon-2240201.html |title=India Successfully Launches Chandrayaan-2, Aims to Become First to Probe Lunar South Pole |website=News18 |date=23 July 2019 |url-status=live |archive-url=https://web.archive.org/web/20190723131504/https://www.news18.com/news/india/chandrayaan-2-launch-moon-mission-isro-live-less-than-two-hours-to-go-for-indias-second-date-with-the-moon-2240201.html |archive-date=23 July 2019 |access-date=23 July 2019}}</ref> The objective of the Chandrayaan-2 mission was to land a robotic rover to conduct various studies on the lunar surface.<ref>{{Cite web |url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=CHANDRYN2 |title=NASA – NSSDCA – Spacecraft – Details |website=nssdc.gsfc.nasa.gov |url-status=live |archive-url=https://web.archive.org/web/20190729172632/https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=CHANDRYN2 |archive-date=29 July 2019 |access-date=23 July 2019}}</ref>

The ''Vikram'' lander, carrying the ''Pragyan'' rover, was scheduled to land on the near side of the Moon, in the south polar region at a latitude of about 70° S at approximately 1:50&nbsp;am(IST) on 7 September 2019. However, the lander deviated from its intended trajectory starting from an altitude of {{cvt|2.1|km}}, and [[Telemetry|telemetry]] was lost seconds before touchdown was expected.<ref>{{Cite web |url=https://www.isro.gov.in/chandrayaan2-home |title=Chandrayaan2 Home – ISRO |website=www.isro.gov.in |url-status=live |archive-url=https://web.archive.org/web/20190729041910/https://www.isro.gov.in/chandrayaan2-home |archive-date=29 July 2019 |access-date=23 July 2019}}</ref> A review board concluded that the crash-landing was caused by a [[Software|software]] glitch.<ref name="Failure report">[https://www.theweek.in/news/sci-tech/2019/11/16/how-did-chandrayaan-2-fail-isro-answer.html How did Chandrayaan 2 fail? ISRO finally has the answer.] {{Webarchive |url=https://web.archive.org/web/20210219143203/https://www.theweek.in/news/sci-tech/2019/11/16/how-did-chandrayaan-2-fail-isro-answer.html |date=19 February 2021 }} Mahesh Guptan, ''The Week''. 16 November 2019.</ref> The lunar orbiter was efficiently positioned in an optimal lunar orbit, extending its expected service time from one year to seven.<ref>{{cite web |url=https://www.isro.gov.in/chandrayaan2-latest-updates |title=Chandrayaan2 Latest updates – ISRO |website=www.isro.gov.in |access-date=2 December 2019 |archive-date=4 September 2019 |archive-url=https://web.archive.org/web/20190904002946/https://www.isro.gov.in/chandrayaan2-latest-updates |url-status=live}}</ref> It was planned that there will be another attempt to soft-land on the Moon in 2023, without an orbiter.<ref name="tie-20220104">{{cite web |last=Dutt |first=Anonna |date=4 January 2022 |title=ISRO targets Gaganyaan launch before Independence day, Chandrayaan 3 by mid-2023 |url=https://indianexpress.com/article/technology/science/isro-targets-gaganyaan-launch-before-august-15-7704957/ |access-date=7 January 2022 |work=The Indian Express |archive-date=7 January 2022 |archive-url=https://web.archive.org/web/20220107190732/https://indianexpress.com/article/technology/science/isro-targets-gaganyaan-launch-before-august-15-7704957/ |url-status=live}}</ref>

;Chandrayaan-3
{{Main|Astronomy:Chandrayaan-3}}
[[File:Chandrayaan-3 – Integrated Module.webp|thumb|Integrated Module of Chandrayaan-3 spacecraft|300x300px]]
Chandryaan-3 is India's second attempt to soft-land on the Moon after the partial failure of Chandrayaan-2. The mission will only include a lander-rover set and will communicate with the orbiter from the previous mission.

On 23 August 2023, ISRO became the first space agency to successfully land a spacecraft on the [[Astronomy:Lunar south pole|lunar south pole]] region, and only the fourth space agency ever to land on the Moon.<ref>{{Cite web |date=2023-08-23 |title='India, I reached my destination': ISRO confirms Chandrayaan 3's soft-landing on moon |url=https://www.moneycontrol.com/news/trends/current-affairs/chandrayaan-3-soft-landing-on-moon-isro-india-11245841.html |access-date=2023-08-23 |website=Moneycontrol |language=en |archive-date=29 August 2023 |archive-url=https://web.archive.org/web/20230829155506/https://www.moneycontrol.com/news/trends/current-affairs/chandrayaan-3-soft-landing-on-moon-isro-india-11245841.html |url-status=live }}</ref>

'''Moonbase habitat'''

ISRO is working on an integrated lunar exploration roadmap which includes setting up of low cost lunar base.<ref name=":1" /> 

=== Mars exploration ===
{{Main|Astronomy:Indian Mars exploration missions}}
;Mars Orbiter Mission ''(MOM)'' or ''(Mangalyaan-1)''
{{Main|Astronomy:Mars Orbiter Mission}}
[[File:Mars Orbiter Mission - India - ArtistsConcept.jpg|thumb|Artist's rendering of the Mars Orbiter Mission spacecraft, with Mars in the background]]
The Mars Orbiter Mission (MOM), informally known as ''Mangalyaan '''(eng: <nowiki>''</nowiki>MarsCraft<nowiki>''</nowiki>''''' ''')''' was launched into Earth [[Physics:Orbit|orbit]] on 5 November 2013 by the Indian Space Research Organisation (ISRO) and has entered Mars orbit on 24 September 2014.<ref name="prelaunch Oct 2013">{{cite news |url=http://www.heraldsun.com.au/technology/science/india-becomes-first-country-to-enter-mars-orbit-on-their-first-attempt/story-fnjwlbuf-1227068835676?nk=20dfb6bbe7f9267fcf8572967c544066 |title=India becomes first country to enter Mars' orbit on their first attempt |date=24 September 2014 |work=Herald Sun |access-date=24 September 2014 |archive-date=24 September 2014 |archive-url=https://archive.today/20140924031128/http://www.heraldsun.com.au/technology/science/india-becomes-first-country-to-enter-mars-orbit-on-their-first-attempt/story-fnjwlbuf-1227068835676?nk=20dfb6bbe7f9267fcf8572967c544066 |url-status=live}}</ref> India thus became the first country to have a space probe enter Mars orbit on its first attempt. It was completed at a record low cost of $74&nbsp;million.<ref>{{cite news |url=http://www.btvin.com/videos/watch/8916/india%E2%80%99s-maiden-mars-mission-makes-history |title=India's Maiden Mars Mission Makes History |access-date=24 September 2014 |url-status=dead |archive-url=https://web.archive.org/web/20140925093532/http://www.btvin.com/videos/watch/8916/india%E2%80%99s-maiden-mars-mission-makes-history |archive-date=25 September 2014 |publisher=Bloomberg TV India}}</ref>

MOM was placed into Mars orbit on 24 September 2014. The spacecraft had a launch mass of {{cvt|1337|kg|abbr=on}}, with {{cvt|15|kg|abbr=on}} of five scientific instruments as payload.<ref name="MOMIsro">{{cite web |title=Mars Orbiter Spacecraft Successfully Inserted into Mars Orbit |url=https://www.isro.gov.in/update/24-sep-2014/mars-orbiter-spacecraft-successfully-inserted-mars-orbit |website=ISRO |access-date=22 July 2022 |archive-date=6 October 2014 |archive-url=https://web.archive.org/web/20141006135353/http://www.isro.org/pressrelease/contents/PrintConfirmation.aspx?ReleasedDate=September%2024,%202014&Date=Sep24_2014 |url-status=dead}}</ref><ref name="MOMSpacecraft">{{cite web |title=Mars Orbiter Mission Spacecraft |url=https://www.isro.gov.in/Spacecraft/mars-orbiter-mission-spacecraft |website=ISRO |access-date=22 July 2022 |archive-date=5 February 2019 |archive-url=https://web.archive.org/web/20190205233935/https://www.isro.gov.in/Spacecraft/mars-orbiter-mission-spacecraft |url-status=dead}}</ref>

The National Space Society awarded the Mars Orbiter Mission team the 2015 Space Pioneer Award in the science and engineering category.<ref>{{cite web |url=http://blog.nss.org/?p=4622 |title=Indian Space Research Organisation Mars Orbiter Programme Team Wins National Space Society's Space Pioneer Award for Science and Engineering |author=Brandt-Erichsen, David |date=12 January 2015 |publisher=National Space Society |url-status=live |archive-url=https://web.archive.org/web/20150202002327/http://blog.nss.org/?p=4622 |archive-date=2 February 2015 |access-date=2 February 2015}}</ref><ref>{{cite news |url=http://www.ndtv.com/india-news/isro-mars-orbiter-mission-team-wins-space-pioneer-award-726885 |title=ISRO Mars Orbiter Mission team Wins Space Pioneer Award |date=14 January 2015 |access-date=2 February 2015 |url-status=live |archive-url=https://web.archive.org/web/20150202011731/http://www.ndtv.com/india-news/isro-mars-orbiter-mission-team-wins-space-pioneer-award-726885 |archive-date=2 February 2015 |publisher=NDTV |location=Washington, United States}}</ref>

=== Solar probes ===
;Aditya-L1
{{Main|Astronomy:Aditya-L1}}

On 2 September 2023, ISRO launched the {{cvt|400|kg|lb|adj=on}} Aditya-L1 mission to study the [[Physics:Solar corona|solar corona]].<ref>{{Cite web |date=4 May 2019 |title=India's first solar mission in 2020: Isro chairman |url=https://timesofindia.indiatimes.com/city/madurai/indias-first-solar-mission-in-2020-isro-chairman/articleshow/69169011.cms |url-status=live |archive-url=https://web.archive.org/web/20190705100844/https://timesofindia.indiatimes.com/city/madurai/indias-first-solar-mission-in-2020-isro-chairman/articleshow/69169011.cms |archive-date=5 July 2019 |access-date=8 August 2019 |website=The Times of India |language=en}}</ref><ref>{{cite news |date=13 February 2018 |title=After Mars, India aims for Sun now |page=12 |work=Mail Today |agency=Mail Today |url=http://epaper.mailtoday.in/c/26281749 |url-status=live |access-date=5 March 2019 |archive-url=https://web.archive.org/web/20190306044940/http://epaper.mailtoday.in/c/26281749 |archive-date=6 March 2019}}</ref><ref>{{cite web |date=9 June 2011 |title=After the Moon, ISRO eyes the sun |url=http://www.ndtv.com/video/player/news/after-the-moon-isro-eyes-the-sun/201990 |url-status=live |archive-url=https://web.archive.org/web/20150927224137/http://www.ndtv.com/video/player/news/after-the-moon-isro-eyes-the-sun/201990 |archive-date=27 September 2015 |access-date=12 June 2015}}</ref> It is the first Indian space-based solar [[Astronomy:Coronagraph|coronagraph]] to study the corona in visible and near-[[Physics:Infrared|infrared]] bands. The main objective of the mission is to study [[Astronomy:Coronal mass ejection|coronal mass ejection]]s (CMEs), their properties (the structure and evolution of their magnetic fields for example), and consequently constrain parameters that affect [[Astronomy:Space weather|space weather]].<ref name="AdityaISRO">{{cite web |title=Aditya – L1 First Indian mission to study the Sun |url=https://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun |url-status=dead |archive-url=https://web.archive.org/web/20191210161048/https://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun |archive-date=10 December 2019 |access-date=22 July 2022 |website=ISRO}}</ref> On 6 January 2024, [[Astronomy:Aditya-L1|Aditya-L1]] spacecraft, India's first solar mission, has successfully entered its final orbit around the first Sun-Earth [[Astronomy:Lagrangian point|Lagrangian point]] (L1), approximately 1.5 million kilometers from [[Astronomy:Earth|Earth]].<ref>{{Cite web |title=Halo-Orbit Insertion of Aditya-L1 Successfully Accomplished |url=https://www.isro.gov.in/halo-orbit-insertion-adtya-l1.html |access-date=2024-01-06 |website=www.isro.gov.in}}</ref>

== Future projects ==
ISRO is developing and operationalising more powerful and less pollutive rocket engines so it can eventually develop much heavier rockets. It also plans to develop electric and nuclear propulsion for satellites and spacecrafts to reduce their weight and extend their service lives.<ref>[https://timesofindia.indiatimes.com/india/after-mars-venus-on-isros-planetary-travel-list/articleshow/69381185.cms After Mars, Venus on Isro's planetary travel list.] {{Webarchive |url=https://web.archive.org/web/20190827144405/https://timesofindia.indiatimes.com/india/after-mars-venus-on-isros-planetary-travel-list/articleshow/69381185.cms|date=27 August 2019}} U. Tejonmayam, ''Times of India''. 18 May 2019.</ref> Long-term plans may include crewed landings on Moon and other planets as well.<ref name="HTSep20">{{Cite news |last=Dutt |first=Anonna |location=New Delhi |title=Gaganyaan mission: Astronauts to undergo Isro module next year |url=https://m.hindustantimes.com/india-news/gaganyaan-mission-astronauts-to-undergo-isro-module-next-year/story-t4FPl0e2b7sLMgqyJ6QoyH.html |date=18 September 2020 |access-date=20 March 2021 |archive-date=30 May 2022 |archive-url=https://web.archive.org/web/20220530200914/https://www.hindustantimes.com/india-news/gaganyaan-mission-astronauts-to-undergo-isro-module-next-year/story-t4FPl0e2b7sLMgqyJ6QoyH.html |url-status=live}}</ref>

=== Engines and launch vehicles ===
;Semi-cryogenic engine
SCE-200 is a rocket-grade [[Chemistry:Kerosene|kerosene]] (dubbed "ISROsene") and [[Physics:Liquid oxygen|liquid oxygen]] (LOX)-based semi-cryogenic rocket engine inspired by RD-120. The engine will be less polluting and far more powerful. When combined with the LVM3, it will boost its payload capacity; it will be clustered in future to power India's heavy rockets.<ref name="WIONMar21" />

;Methalox engine
Reusable [[Chemistry:Methane|methane]] and LOX-based engines are under development. Methane is less pollutive, leaves no residue and hence the engine needs very little refurbishment.<ref name="WIONMar21" /> The [[Astronomy:Liquid Propulsion Systems Centre|LPSC]] began cold flow tests of engine prototypes in 2020.<ref name="lpsctimeline" />

;Modular heavy rockets
{{Main|Engineering:Next Generation Launch Vehicle}}
ISRO is studying [[Engineering:Heavy-lift launch vehicle|heavy]] (HLV) and super-heavy lift launch vehicles (SHLV). Modular launchers are being designed, with interchangeable parts, to reduce production time. A {{convert|10|t|ST LT|adj=on}} capacity HLV and an SHLV capable of delivering {{convert|50|-|100|t|ST LT}} into orbit have been mentioned in statements and presentations from ISRO officials.<ref>{{Cite news |date=30 May 2015 |title=ISRO developing heavy lift launch vehicles |url=https://www.thehindu.com/news/cities/Thiruvananthapuram/isro-developing-heavy-lift-launch-vehicles/article7262881.ece |newspaper=The Hindi |location=Thiruvanantpuram |access-date=21 March 2021 |archive-date=7 April 2021 |archive-url=https://web.archive.org/web/20210407202204/https://www.thehindu.com/news/cities/Thiruvananthapuram/isro-developing-heavy-lift-launch-vehicles/article7262881.ece |url-status=live}}</ref><ref>{{cite speech |last=Somanath |first=S. |date=3 August 2020 |title=Indian Innovations in Space Technology: Achievements and Aspirations |url=http://imgur.com/a/ffL2XRp |location=VSSC |archive-url=https://web.archive.org/web/20200913095544/http://imgur.com/a/ffL2XRp |archive-date=13 September 2020 |via=imgur |access-date=21 March 2021}}</ref>

The agency intends to develop a launcher in the 2020s which can carry nearly {{cvt|16|t|ST LT}} to [[Astronomy:Geostationary transfer orbit|geostationary transfer orbit]], nearly four times the capacity of the existing LVM3.<ref name="WIONMar21">{{Cite news |last=MP |first=Sidhharth |date=14 March 2021 |title=ISRO: Chandrayaan-3 launch by mid-2022, Mangalyaan-2 in definition stage |url=https://www.wionews.com/india-news/isro-chandrayaan-3-launch-by-mid-2022-mangalyaan-2-in-definition-stage-370417 |newspaper=WION |location=Chennai |access-date=21 March 2021 |archive-date=17 March 2021 |archive-url=https://web.archive.org/web/20210317223434/https://www.wionews.com/india-news/isro-chandrayaan-3-launch-by-mid-2022-mangalyaan-2-in-definition-stage-370417 |url-status=live}}</ref> A rocket family of five medium to heavy-lift class modular rockets described as "Next Generation Launch Vehicle or NGLV"<ref>{{Cite news |date=2023-06-08 |title=ISRO readies plan for next generation launch vehicle |language=en-IN |work=The Hindu |url=https://www.thehindu.com/sci-tech/science/isro-readies-plan-for-next-generation-launch-vehicle/article66946403.ece |access-date=2023-07-17 |issn=0971-751X |archive-date=17 July 2023 |archive-url=https://web.archive.org/web/20230717081813/https://www.thehindu.com/sci-tech/science/isro-readies-plan-for-next-generation-launch-vehicle/article66946403.ece |url-status=live }}</ref> (initially planned as ''Unified Modular Launch Vehicle'' or ''Unified Launch Vehicle'') are being planned which will share parts and will replace ISRO's existing PSLV, GSLV and LVM3 rockets completely. The rocket family will be powered by SCE-200 cryogenic engine and will have a capacity of lifting from {{cvt|4.9|t|ST LT}} to {{cvt|16|t|ST LT}} to geostationary transfer orbit.<ref name="WIONSep21">{{Cite news |author=Siddarth MP |date=14 September 2021 |title=ISRO's new series of heavy-lift rockets to carry between 5-16 tonnes to GTO |url=https://www.wionews.com/science/isros-new-series-of-heavy-lift-rockets-to-carry-between-5-16-tonnes-to-gto-413107? |newspaper=WION |access-date=15 September 2021 |archive-date=15 September 2021 |archive-url=https://web.archive.org/web/20210915024552/https://www.wionews.com/science/isros-new-series-of-heavy-lift-rockets-to-carry-between-5-16-tonnes-to-gto-413107 |url-status=live}}</ref>

;Reusable launch vehicles
{{Main|Engineering:RLV Technology Demonstration Programme}}
[[File:Launch of RLV-TD HEX01 from First Launch Pad of Satish Dhawan Space Centre, Sriharikota (SDSC SHAR) 02.jpg|thumb|RLV-TD HEX01 from [[Astronomy:Satish Dhawan Space Centre First Launch Pad|Satish Dhawan Space Centre First Launch Pad]] (SDSC SHAR) on 23 May 2016]]
There have been two reusable launcher projects ongoing at ISRO. One is the ADMIRE test vehicle, conceived as a [[Engineering:VTVL|VTVL]] system and another is RLV-TD programme, being run to develop an autonomous spacecraft which will be launched vertically but land like a plane.<ref>{{Cite news |date=2 January 2019 |title=ISRO Is Working on Two Competing Reusable Launcher Designs |url=https://science.thewire.in/spaceflight/isro-is-working-on-two-competing-reusable-launch-vehicle-designs/ |work=Science Wire |access-date=21 March 2021 |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413203350/https://science.thewire.in/spaceflight/isro-is-working-on-two-competing-reusable-launch-vehicle-designs/ |url-status=live}}</ref>

To realise a fully re-usable [[Astronomy:Two-stage-to-orbit|two-stage-to-orbit]] (TSTO) launch vehicle, a series of technology demonstration missions have been conceived. For this purpose, the winged Reusable Launch Vehicle Technology Demonstrator ([[Astronomy:RLV-TD|RLV-TD]]) has been configured. The RLV-TD acts as a flying [[Testbed|testbed]] to evaluate various technologies such as hypersonic flight, autonomous landing, powered cruise flight, and hypersonic flight using air-breathing propulsion. First in the series of demonstration trials was the [[Astronomy:Hypersonic Flight Experiment|Hypersonic Flight Experiment]] (HEX). ISRO launched the prototype's test flight, RLV-TD, from the Sriharikota spaceport in February 2016. It weighs around {{cvt|1.5|t|ST LT}} and flew up to a height of {{cvt|70|km}}.<ref>{{cite news |last1=Rajwi |first1=Tiki |title=Futuristic Unmanned Space Shuttle Getting Final Touches |url=http://www.newindianexpress.com/states/kerala/2015/may/20/Futuristic-Unmanned-Space-Shuttle-Getting-Final-Touches-763087.html |work=The New Indian Express |date=20 May 2015 |access-date=13 December 2017 |archive-url=https://web.archive.org/web/20171214071440/http://www.newindianexpress.com/states/kerala/2015/may/20/Futuristic-Unmanned-Space-Shuttle-Getting-Final-Touches-763087.html |archive-date=14 December 2017 |url-status=live}}</ref> HEX was completed five months later. A scaled-up version of it could serve as fly-back booster stage for the winged TSTO concept.<ref>{{cite news |title=Design process has been validated |url=https://www.frontline.in/science-and-technology/design-process-has-been-validated/article8704727.ece |access-date=7 September 2018 |archive-date=30 May 2022 |archive-url=https://web.archive.org/web/20220530200916/https://frontline.thehindu.com/ |url-status=live}}</ref> HEX will be followed by a landing experiment (LEX) and return flight experiment (REX).<ref>{{cite web |title=ISRO Plans To Test ground Landing Of 'Desi' Space Shuttle By Year end |url=https://kalingatv.com/nation/isro-plans-to-test-ground-landing-of-its-space-shuttle-like-reusable-launch-vehicle/ |website=Kalinga TV |date=7 October 2020 |access-date=21 March 2021 |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413203915/https://kalingatv.com/nation/isro-plans-to-test-ground-landing-of-its-space-shuttle-like-reusable-launch-vehicle/ |url-status=live}}</ref>

=== Spacecraft propulsion and power ===
;Electric thrusters
{{Main|Engineering:Spacecraft electric propulsion}}
India has been working on replacing conventional chemical propulsion with [[Physics:Hall-effect thruster|Hall-effect]] and [[Engineering:Pulsed plasma thruster|plasma]] thrusters which would make spacecraft lighter.<ref name="WIONMar21" /> [[Engineering:GSAT-4|GSAT-4]] was the first Indian spacecraft to carry electric thrusters, but it failed to reach orbit.<ref>{{cite news |url=http://www.thehindu.com/sci-tech/science/article399411.ece |title=Why didn't the cryogenic engine ignite? |last=Subramanian |first=T. S. |date=17 April 2010 |work=The Hindu |access-date=21 March 2021 |archive-date=13 November 2012 |archive-url=https://web.archive.org/web/20121113123805/http://www.thehindu.com/sci-tech/science/article399411.ece |url-status=live}}</ref> GSAT-9 launched later in 2017, had [[Chemistry:Xenon|xenon]]-based electric propulsion system for in-orbit functions of the spacecraft. [[Engineering:GSAT-20|GSAT-20]] is expected to be the first fully electric satellite from India.<ref name="newsexpress">{{cite news |url=http://www.newindianexpress.com/states/kerala/ISRO-to-Test-Electric-Propulsion-on-Satellites/2015/11/30/article3153565.ece |title=ISRO to Test Electric Propulsion on Satellites |work=The New Indian Express |first=Tiki |last=Rajwi |date=30 November 2015 |access-date=21 March 2021 |archive-date=7 May 2016 |archive-url=https://web.archive.org/web/20160507084803/http://www.newindianexpress.com/states/kerala/ISRO-to-Test-Electric-Propulsion-on-Satellites/2015/11/30/article3153565.ece |url-status=live}}</ref><ref>{{cite news |url=http://www.thehindu.com/sci-tech/science/gsat-9-heralds-cost-saving-electric-propulsion/article18347912.ece |title=GSAT-9 heralds cost-saving electric propulsion |work=The Hindu |last=D. S. |first=Madhumathi |date=1 May 2017 |access-date=21 March 2021 |archive-date=15 April 2021 |archive-url=https://web.archive.org/web/20210415023332/https://www.thehindu.com/sci-tech/science/gsat-9-heralds-cost-saving-electric-propulsion/article18347912.ece |url-status=live}}</ref>

;Alpha source thermoelectric propulsion technology
{{Main|Physics:Radioisotope thermoelectric generator}}
Radioisotope thermoelectric generator (RTG), also called alpha source thermoelectric technology by ISRO, is a type of [[Engineering:Atomic battery|atomic battery]] which uses nuclear [[Physics:Decay heat|decay heat]] from radioactive material to power the spacecraft.<ref name=NPE3>[https://netfiles.uiuc.edu/mragheb/www/NPRE%20402%20ME%20405%20Nuclear%20Power%20Engineering/Radioisotopes%20Power%20Production.pdf NPE chapter 3 Radioisotope Power Generation] {{webarchive |url=https://web.archive.org/web/20121218194925/https://netfiles.uiuc.edu/mragheb/www/NPRE%20402%20ME%20405%20Nuclear%20Power%20Engineering/Radioisotopes%20Power%20Production.pdf |date=18 December 2012 }}</ref> In January 2021, the [[Astronomy:U R Rao Satellite Centre|U R Rao Satellite Centre]] issued an Expression of Interest (EoI) for design and development of a 100-[[Watt|watt]] RTG. RTGs ensure much longer spacecraft life and have less mass than solar panels on satellites. Development of RTGs will allow ISRO to undertake long-duration deep space missions to the outer planets.<ref name="RTEG" /><ref>{{Cite web |last=Bansal |first=Nitansha |title=ISRO plans for nuclear energy use in space |url=https://www.orfonline.org/expert-speak/isro-plans-for-nuclear-energy-use-in-space/ |url-status=live |access-date=19 May 2021 |website=Observer Research Foundation |language=en-US |archive-date=18 May 2021 |archive-url=https://web.archive.org/web/20210518140859/https://www.orfonline.org/expert-speak/isro-plans-for-nuclear-energy-use-in-space/}}</ref>

'''Radioisotope heater unit''' 

{{Main|Engineering:Radioisotope heater unit}}

ISRO included two radioisotope heater units developed by the Department of Atomic Energy (DAE) in the propulsion module of [[Astronomy:Chandrayaan-3|Chandrayaan-3]] on a trial basis which worked flawlessly.<ref name=":1">{{Cite news |last=Laxman |first=Srinivas |date=2023-12-29 |title=Nuclear sector set to power Indian space missions: Isro chief |work=The Times of India |url=https://timesofindia.indiatimes.com/home/science/nuclear-sector-set-to-power-indian-space-missions-isro-chief/articleshow/106359396.cms?from=mdr |access-date=2023-12-29 |issn=0971-8257}}</ref>

'''Nuclear propulsion'''


ISRO has plans for collabroation with Department of Atomic Energy to power future space missions using nuclear propulsion technology.<ref name=":1" />

=== Quantum technology ===
'''Satellite-based quantum communication'''

At the Indian Mobile Congress (IMC) 2023, ISRO presented its satellite-based quantum communication technology. It's called [[Quantum key distribution|quantum key distribution]] (QKD) technology. According to ISRO, it is creating technologies to thwart quantum computers, which have the ability to readily breach the current generation of encrypted secure communication. A significant milestone for unconditionally secured satellite data communication was reached in September 2023 when ISRO demonstrated free-space quantum communication across a 300-meter distance, including live video conferencing using quantum-key encrypted signals.<ref>{{Cite web |last=Upadhyay |first=Bharat |date=2023-10-30 |title=ISRO Is Working On This BIG Project To Secure India's Future Of Computing |url=https://www.news18.com/tech/isro-is-working-on-this-big-project-to-secure-indias-future-of-computing-8639388.html |access-date=2023-12-27 |website=News18 |language=en}}</ref>  

=== Extraterrestrial probes ===
{| class="wikitable"
|-
! Destination !!Craft name !!Launch vehicle !!Year
|-
| [[Astronomy:Moon|Moon]] ||[[Astronomy:Lunar Polar Exploration Mission|LUPEX]]
|[[Engineering:H3 (rocket)|H3]]
|2026<ref name = "LUPEX_2026_28">{{Cite AV media |title=4th IPSC 2023 Inauguration |url=https://www.youtube.com/watch?v=vf-tBT7UTx4&t=4689s |date=2023-03-22 |time=1:18:09}}</ref>
|-
| [[Astronomy:Venus|Venus]] ||[[Astronomy:Venus Orbiter Mission|Venus Orbiter Mission]]||[[Engineering:Geosynchronous Satellite Launch Vehicle|GSLV]]||2028-31<ref name="toi-20220505">{{cite web |last=Singh |first=Surendra |url=https://timesofindia.indiatimes.com/home/science/isro-to-join-race-to-venus-eyes-2024-orbiter-launch/articleshow/91326428.cms |title=Isro to join race to Venus, eyes 2024 orbiter launch |work=The Times of India |date=5 May 2022 |access-date=17 January 2024}}</ref>
|-
|  [[Astronomy:Mars|Mars]] ||[[Astronomy:Mars Orbiter Mission 2|Mars Orbiter Mission 2]] <br />(''Mangalyaan-2'') ||[[Engineering:LVM3|LVM3]]||2024
|}

;Lunar exploration
{{Main|Astronomy:Lunar Polar Exploration Mission}}
The Lunar Polar Exploration mission (LUPEX) is a planned robotic lunar mission concept by Indian Space Research Organisation (ISRO) and Japan Aerospace Exploration Agency (JAXA) that would send a lunar rover and lander to explore the south pole region of the Moon no earlier than 2026. JAXA is likely to provide the under-development [[Engineering:H3 (rocket)|H3 launch vehicle]] and the rover, while ISRO would be responsible for the lander.<ref name=":0" /><ref name="JPGU2019">{{cite web |url=https://confit.atlas.jp/guide/event-img/jpgu2019/PPS08-15/public/pdf |title=Current status of a Japanese lunar polar exploration mission |last1=Hoshino |first1=Takeshi |last2=Ohtake |first2=Makiko |date=May 2019 |archive-url=https://web.archive.org/web/20190725143619/https://confit.atlas.jp/guide/event-img/jpgu2019/PPS08-15/public/pdf?type=in&lang=ja |last3=Karouji |first3=Yuzuru |last4=Shiraishi |first4=Hiroaki |archive-date=25 July 2019 |access-date=10 March 2021}}</ref>

'''Crewed Lunar Landing'''

ISRO aims to put an astronaut on the lunar surface by 2040.<ref>{{Cite web |last=Kuthunur |first=Sharmila |date=2023-10-18 |title=India wants to land astronauts on the moon in 2040 |url=https://www.space.com/india-land-astronauts-moon-2040 |access-date=2023-12-15 |website=Space.com |language=en}}</ref>

;Mars exploration
{{Main|Astronomy:Mars Orbiter Mission 2}}
The next Mars mission, Mars Orbiter Mission 2 or Mangalyaan 2, has been proposed for launch in 2024.<ref name="RS_20190718">{{Cite web |url=https://imgur.com/a/SXXyGzC |archive-url=https://web.archive.org/web/20200913095719/https://imgur.com/a/SXXyGzC |url-status=dead |title=Rajya Sabha Unstarred Question No. 2955 |archive-date=13 September 2020 |website=Imgur.com |access-date=23 July 2022}}</ref> The newer spacecraft will be significantly heavier and better equipped than its predecessor;<ref name="Episode 90" /> it will only have an orbiter.<ref>{{Cite news |title=Mangalyaan-2 will be an orbiter mission: ISRO chief K Sivan |work=The Economic Times |url=https://economictimes.indiatimes.com/news/science/indias-next-mars-mission-likely-to-be-an-orbiter/articleshow/81111742.cms?from=mdr |access-date=12 August 2021 |archive-date=12 August 2021 |archive-url=https://web.archive.org/web/20210812102845/https://economictimes.indiatimes.com/news/science/indias-next-mars-mission-likely-to-be-an-orbiter/articleshow/81111742.cms?from=mdr |url-status=live}}</ref>

;Venus exploration
{{Main|Astronomy:Venus Orbiter Mission}}
ISRO is considering an orbiter mission to Venus called Venus Orbiter Mission, that could launch as early as 2023 to study [[Astronomy:Atmosphere of Venus|the planet's atmosphere]].<ref name="Venorb">{{Cite web |url=http://indianexpress.com/article/technology/science/isro-invites-scientists-from-across-country-for-venus-mission-4627259/ |title=ISRO gears up for Venus mission, invites proposals from scientists |date=25 April 2017 |website=The Indian Express |location=[[Place:New Delhi|New Delhi]] |access-date=23 January 2018 |archive-url=https://web.archive.org/web/20170618192208/http://indianexpress.com/article/technology/science/isro-invites-scientists-from-across-country-for-venus-mission-4627259/ |archive-date=18 June 2017 |url-status=live}}</ref> Some funds for preliminary studies were allocated in the 2017–18 Indian budget under Space Sciences;<ref>{{cite news |url=http://articles.timesofindia.indiatimes.com/2012-02-17/hyderabad/31070866_1_venus-mission-chandrayaan-1-isro |title=India planning Venus mission |author=Srinivas Laxman |date=17 February 2012 |access-date=24 July 2012 |archive-url=https://web.archive.org/web/20120218204750/http://articles.timesofindia.indiatimes.com/2012-02-17/hyderabad/31070866_1_venus-mission-chandrayaan-1-isro |archive-date=18 February 2012 |work=The Times of India |url-status=dead}}</ref><ref>{{cite web |url=http://www.asianage.com/india/after-mars-isro-aims-venus-probe-2-3-years-335 |title=After Mars, Isro aims for Venus probe in 2–3 years |work=The Asian Age |url-status=dead |archive-url=https://web.archive.org/web/20150530141559/http://www.asianage.com/india/after-mars-isro-aims-venus-probe-2-3-years-335 |archive-date=30 May 2015 |access-date=12 June 2015}}</ref><ref name="indiabudget.gov.in">{{Cite web |url=http://www.indiabudget.gov.in/ub2017-18/eb/sbe91.pdf |title=Department of Space |website=Ministry of Finance, Government of India |access-date=18 January 2018 |archive-url=https://web.archive.org/web/20171215111518/http://indiabudget.gov.in/ub2017-18/eb/sbe91.pdf |archive-date=15 December 2017 |url-status=dead}}</ref> solicitations for potential instruments were requested in 2017<ref name="A of O">{{cite web |url=http://www.isro.gov.in/announcement-of-opportunity-ao-space-based-experiments-to-study-venus |title=Announcement of Opportunity (AO) for Space Based Experiments to Study Venus |date=19 April 2017 |website=ISRO.gov.in |access-date=13 September 2017 |archive-url=https://web.archive.org/web/20170913183153/http://www.isro.gov.in/announcement-of-opportunity-ao-space-based-experiments-to-study-venus |archive-date=13 September 2017 |url-status=live}}</ref> and 2018. A mission to Venus is scheduled for 2025 that will include a payload instrument called Venus Infrared Atmospheric Gases Linker (VIRAL) which has been co-developed with the [[Organization:Laboratoire atmosphères, milieux, observations spatiales|Laboratoire atmosphères, milieux, observations spatiales]] (LATMOS) under French National Centre for Scientific Research (CNRS) and [[Company:Roscosmos|Roscosmos]].<ref>{{cite news |title=ISRO to launch its Venus mission in 2025, France to take part |url=https://www.livemint.com/science/news/isro-to-launch-its-venus-mission-in-2025-france-to-take-part-11601476329074.html |access-date=1 October 2020 |agency=PTI |publisher=Livemint |date=30 September 2020 |archive-date=31 October 2020 |archive-url=https://web.archive.org/web/20201031090613/https://www.livemint.com/science/news/isro-to-launch-its-venus-mission-in-2025-france-to-take-part-11601476329074.html |url-status=live}}</ref>

;Asteroids and outer solar system
Conceptual studies are underway for spacecraft destined for the asteroids and [[Astronomy:Jupiter|Jupiter]], as well, in the long term. The ideal launch window to send a spacecraft to Jupiter occurs every 33 months. If the mission to [[Astronomy:Jupiter|Jupiter]] is launched, a flyby of [[Astronomy:Venus|Venus]] would be required.<ref>{{cite web |title=After Mars, ISRO looks to conquer Venus & Jupiter |url=http://bangaloremirror.indiatimes.com/bangalore/others/After-Mars-ISRO-looks-to-conquer-Venus-Jupiter/articleshow/56342122.cms |url-status=live |archive-url=https://web.archive.org/web/20170108002328/http://bangaloremirror.indiatimes.com/bangalore/others/After-Mars-ISRO-looks-to-conquer-Venus-Jupiter/articleshow/56342122.cms |archive-date=8 January 2017 |access-date=7 January 2017 |newspaper=Bangalore Mirror}}</ref> Development of [[Physics:Radioisotope thermoelectric generator|RTEG]] power might allow the agency to further undertake deeper space missions to the other outer planets.<ref name="RTEG">{{Cite news |last=Laxman |first=Srinivas |title=ISRO plans new propulsion for deep space missions |url=https://m.timesofindia.com/india/isro-plans-new-propulsion-for-deep-space-missions/articleshow/80801653.cms |newspaper=The Times of India |access-date=20 March 2021 |archive-date=10 February 2021 |archive-url=https://web.archive.org/web/20210210214048/https://m.timesofindia.com/india/isro-plans-new-propulsion-for-deep-space-missions/articleshow/80801653.cms |url-status=live}}</ref>

=== Space telescopes and observatories ===
;AstroSat-2
{{Main|Astronomy:AstroSat-2}}
[[Astronomy:AstroSat-2|AstroSat-2]] is the successor to the [[Astronomy:AstroSat|AstroSat]] mission.<ref name=TOI1>{{cite news |title=ISRO plans to launch India's 2nd space observatory |url=https://timesofindia.indiatimes.com//home/science/isro-plans-to-launch-indias-2nd-space-observatory/articleshow/62975636.cms? |archive-url=https://web.archive.org/web/20190201224032/https://timesofindia.indiatimes.com//home/science/isro-plans-to-launch-indias-2nd-space-observatory/articleshow/62975636.cms |url-status=dead |archive-date=1 February 2019 |author=Surendra Singh |date=19 February 2018 |newspaper=Times of India |access-date=20 March 2021}}</ref>

;Exoworlds
Exoworlds is a joint proposal by ISRO, [[Organization:Indian Institute of Space Science and Technology|IIST]] and the [[Organization:University of Cambridge|University of Cambridge]] for a space telescope dedicated for atmospheric studies of [[Astronomy:Exoplanet|exoplanet]]s, planned for 2025.<ref>{{Cite web |url=https://www.deccanherald.com/state/mangaluru/exoworlds-to-take-off-in-2025-kasturirangan-782783.html |title=Exoworlds to take off in 2025: Kasturirangan |date=5 December 2019 |website=Deccan Herald |language=en |access-date=6 December 2019 |archive-date=6 December 2019 |archive-url=https://web.archive.org/web/20191206074439/https://www.deccanherald.com/state/mangaluru/exoworlds-to-take-off-in-2025-kasturirangan-782783.html |url-status=live}}</ref><ref>{{Cite web |url=https://www.iist.ac.in/sites/default/files/library/7thconvocationspeech2019.pdf |title=Seventh convocation address IIST |date=5 July 2019 |url-status=live |archive-url=https://web.archive.org/web/20191206054815/https://www.iist.ac.in/sites/default/files/library/7thconvocationspeech2019.pdf |archive-date=6 December 2019 |access-date=6 December 2019}}</ref>

=== Forthcoming satellites ===
{| class="wikitable"
|-
! Satellite name
! Launch vehicle
! Year!! Purpose
! Notes
|-
| [[Engineering:GSAT-20|GSAT-20]]
| [[Engineering:Falcon 9|Falcon 9]]
| 2024 ||[[Astronomy:Communications satellite|Communications]]
|
|-
| GISAT 2
| GSLV
| 2024
| [[Astronomy:Earth observation satellite|Earth observation]]
|Geospatial imagery to facilitate continuous observation of Indian sub-continent, quick monitoring of natural hazards and disaster.<ref>{{cite web |url=https://www.isro.gov.in/sites/default/files/usq119.pdf |title=RAJYA SABHA UNSTARRED QUESTION NO.119 TO BE ANSWERED ON THURSDAY, NOVEMBER 22, 2012 DESIGNING OF GEO IMAGING SATELLITE |website=Isro.gov.in |access-date=July 23, 2022}}{{Dead link|date=October 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
|-
| [[Engineering:Indian Data Relay Satellite System|IDRSS]]
| GSLV
| 2024 || [[Data transmission|Data relay and satellite tracking constellation]]
| Facilitates continuous real-time communication between [[Astronomy:Low Earth orbit|Low Earth orbit]] bound spacecraft to the [[Astronomy:Ground station|ground station]] as well as inter-satellite communication. Such a satellite in geostationary orbit can track a low altitude spacecraft up to almost half of its orbit.<ref>{{Cite news |url=https://www.indiatoday.in/education-today/gk-current-affairs/story/satellites-isro-idrss-1411248-2018-12-17 |title=ISRO to launch two satellites under IDRSS: All about it |date=December 17, 2018 |newspaper=India Today |access-date=October 5, 2019 |archive-url=https://web.archive.org/web/20191006172004/https://www.indiatoday.in/education-today/gk-current-affairs/story/satellites-isro-idrss-1411248-2018-12-17 |archive-date=6 October 2019}}</ref>
|-
| [[Earth:NISAR (satellite)|NISAR]]
| GSLV
| March 2024 || Earth observation
|NASA-ISRO Synthetic Aperture Radar (NISAR) is a joint project between NASA and ISRO to co-develop and launch a dual frequency synthetic aperture radar satellite to be used for [[Earth:Remote sensing|remote sensing]]. It is notable for being the first dual band radar imaging satellite.<ref name="NISARJPL">{{cite web |title=Mission Concept |url=https://nisar.jpl.nasa.gov/mission/mission-concept/ |website=Jet Propulsion Laboratory |access-date=22 July 2022 |archive-date=5 July 2022 |archive-url=https://web.archive.org/web/20220705214244/https://nisar.jpl.nasa.gov/mission/mission-concept/ |url-status=live }}</ref>
|-
| DISHA
| [[Engineering:Polar Satellite Launch Vehicle|PSLV]]
| 2024–25<ref>{{cite web |url=https://timesofindia.indiatimes.com/city/ahmedabad/aeronomy-satellite-in-advanced-planning-stage/articleshow/66323217.cms |title=Space Applications Centre: 'Aeronomy satellite in advanced planning stage' |work=The Times of India |date=23 October 2018 |access-date=18 July 2019 |archive-url=https://web.archive.org/web/20190109064936/https://timesofindia.indiatimes.com/city/ahmedabad/aeronomy-satellite-in-advanced-planning-stage/articleshow/66323217.cms |archive-date=9 January 2019 |url-status=live}}</ref>
| [[Earth:Aeronomy|Aeronomy]]
|Disturbed and quite-type Ionosphere System at High Altitude (DISHA) satellite constellation with two satellites in {{cvt|450|km|adj=on}} [[Astronomy:Low Earth orbit|LEO]].<ref name="RS_20190718" />
|-
| AHySIS-2
| PSLV
| 2024
| Earth observation
|Follow-up to HySIS hyperspectral Earth imaging satellite.<ref>{{cite conference |last=Kumar |first=Suresh |url=https://www.researchgate.net/publication/331648387 |title=Hyperspectral Remote Sensing of Salt-affected Soils : Potential & Future Prospects |location=Central Soil Salinity Research Institute, Karnal, India |conference=Golden Jubilee International Salinity Conference (GJISC-2019) |date=11 March 2019 |access-date=24 July 2021 |archive-date=30 May 2022 |archive-url=https://web.archive.org/web/20220530200919/https://www.researchgate.net/publication/331648387_Hyperspectral_Remote_Sensing_of_Salt-affected_Soils_Potential_Future_Prospects |url-status=live}}</ref>
|}
'''Geospatial intelligence satellites'''

A family of 50 [[Artificial intelligence|artificial intelligence]] based satellites will be launched by ISRO between 2024 and 2028 to collect geospatial intelligence (GEOINT) in different orbits to track military movements and photograph areas of interest. For the sake of national security, the satellites will monitor the neighboring areas and the international border. It will use thermal, optical, [[Engineering:Synthetic-aperture radar|synthetic aperture radar]] (SAR), among other technologies, for GEOINT application. Each satellite using artificial intelligence will have the ability to communicate and colloborate with the remaining satellites in space at different orbits to monitor the environment for intelligence gathering operations.<ref>{{Cite news |date=2023-12-28 |title=Isro to launch 50 satellites in 5 years to boost India's intelligence-gathering capabilities; Aditya-L1 set to reach Lagrange Point on January 6: Isro chief S Somnath |work=The Times of India |url=https://timesofindia.indiatimes.com/home/science/aditya-l1-set-to-reach-lagrange-point-on-january-6-isro-chief-s-somnath/articleshow/106356577.cms?from=mdr |access-date=2023-12-30 |issn=0971-8257}}</ref><ref>{{Cite news |last=Singh |first=Surendra |date=2023-12-30 |title=Isro plans 50 AI-based surveillance satellites |work=The Times of India |url=https://timesofindia.indiatimes.com/india/isro-plans-50-ai-based-surveillance-satellites/articleshow/106390103.cms?from=mdr |access-date=2023-12-31 |issn=0971-8257}}</ref>

=== Upcoming launch facilities ===
;Kulasekharapatnam Spaceport
{{Main|Astronomy:Kulasekharapatnam Spaceport}}
Kulasekharapatnam Spaceport is an under-development spaceport in Thoothukudi district of Tamil Nadu. After completion, it would serve as the second launch facility of ISRO. This spaceport will mainly be used by ISRO for launching small payloads.<ref>{{cite web|url=https://www.thehindu.com/sci-tech/science/second-spaceport-of-isro-to-be-set-up-at-kulasekarapattinam-in-tamil-nadu/article67403573.ece|title=Second spaceport of ISRO to be set up at Kulasekarapattinam in Tamil Nadu|website=The Hindu |access-date=6 January 2023}}</ref>

== Applications ==
=== Telecommunication ===
India uses its satellite communication network – one of the largest in the world – for applications such as land management, water resources management, natural disaster forecasting, radio networking, weather forecasting, meteorological imaging and computer communication.{{sfn|Bhaskarnarayana|Bhatia|Bandyopadhyay|Jain|2007|pp=1738–1746}} Business, administrative services, and schemes such as the National Informatics Centre (NIC) are direct beneficiaries of applied satellite technology.{{sfn|Bhaskarnarayana|Bhatia|Bandyopadhyay|Jain|2007|p=1738}}

=== Military ===
The [[Organization:Integrated Space Cell|Integrated Space Cell]], under the Integrated Defence Staff headquarters of the Ministry of Defence,<ref name=iss>{{cite web |url=http://www.atimes.com/atimes/South_Asia/JF18Df01.html |title=India goes to war in space |date=18 June 2008 |access-date=2 July 2010 |archive-url=https://web.archive.org/web/20100811041736/http://atimes.com/atimes/South_Asia/JF18Df01.html |archive-date=11 August 2010 |url-status=dead}}</ref> has been set up to utilise more effectively the country's space-based assets for military purposes and to look into threats to these assets.<ref>{{cite web |title=India in aerospace defence plan |url=http://news.bbc.co.uk/2/hi/south_asia/6307875.stm |publisher=BBC |date=28 January 2007 |access-date=24 April 2009 |archive-url=https://web.archive.org/web/20090929001552/http://news.bbc.co.uk/2/hi/south_asia/6307875.stm |archive-date=29 September 2009 |url-status=live}}</ref><ref>{{cite web |title=India Begins Work on Space Weapons Command |url=http://www.spacewar.com/reports/India_Begins_Work_On_Space_Weapons_Command.html |archive-url=https://archive.today/20070709071654/http://www.spacewar.com/reports/India_Begins_Work_On_Space_Weapons_Command.html |url-status=dead |archive-date=9 July 2007 |publisher=SpaceDaily |date=12 April 2006 |access-date=24 April 2009}}</ref> This command will leverage space technology including satellites. Unlike an aerospace command, where the Air Force controls most of its activities, the Integrated Space Cell envisages cooperation and coordination between the three services as well as civilian agencies dealing with space.<ref name=iss />

With 14 satellites, including [[Engineering:GSAT-7A|GSAT-7A]] for exclusive military use and the rest as dual-use satellites, India has the fourth largest number of satellites active in the sky which includes satellites for the exclusive use of its {{wipe|Indian Air Force}} (IAF) and navy.<ref name=howmany>[https://timesofindia.indiatimes.com/india/why-isros-gsat-7a-launch-is-important-for-iaf/articleshow/67153347.cms Why Isro's Gsat-7A launch is important for the Indian Air Force] {{Webarchive |url=https://web.archive.org/web/20181219050914/https://timesofindia.indiatimes.com/india/why-isros-gsat-7a-launch-is-important-for-iaf/articleshow/67153347.cms |date=19 December 2018 }}, Times of India, 19 December 2018.</ref> GSAT-7A, an advanced military communications satellite built exclusively for the Air Force,<ref name=":0">{{Cite web |url=http://archive.defensenews.com/article/20130910/DEFREG03/309100007/India-s-Tech-Roadmap-Points-Small-Sats-Space-Weapons |title=India's Tech Roadmap Points to Small Sats, Space Weapons |archive-url=https://archive.today/20150121220451/http://archive.defensenews.com/article/20130910/DEFREG03/309100007/India-s-Tech-Roadmap-Points-Small-Sats-Space-Weapons |archive-date=21 January 2015 |url-status=dead}}</ref> is similar to the Navy's [[Engineering:GSAT-7|GSAT-7]], and GSAT-7A will enhance the IAF's [[Network-centric warfare|network-centric warfare]] capabilities by interlinking different ground radar stations, ground airbases and [[Engineering:Airborne early warning and control|airborne early warning and control]] (AWACS) aircraft such as the [[Engineering:Beriev A-50|Beriev A-50]] Phalcon and DRDO AEW&CS.<ref name=":0" /><ref name=skymil1 />

GSAT-7A will also be used by the Army's Aviation Corps for its helicopters and [[Engineering:Unmanned aerial vehicle|unmanned aerial vehicle]] (UAV) operations.<ref name=":0" /><ref name=skymil1>{{Cite web |url=http://ibnlive.in.com/news/iaf-to-induct-214-fifth-generation-fighter-jets/189940-3.html |title=IAF to induct 214 fifth generation fighter jets |archive-url=https://web.archive.org/web/20120703035131/http://ibnlive.in.com/news/iaf-to-induct-214-fifth-generation-fighter-jets/189940-3.html |archive-date=3 July 2012 |url-status=dead}}</ref> In 2013, ISRO launched GSAT-7 for the exclusive use of the Navy to monitor the [[Earth:Indian Ocean|Indian Ocean]] Region (IOR) with the satellite's {{convert|2000|nmi|adj=on}} 'footprint' and real-time input capabilities to Indian warships, submarines and maritime aircraft.<ref name=howmany /> To boost the network-centric operations of the IAF, ISRO launched [[Engineering:GSAT-7A|GSAT-7A]] in December 2018.<ref>{{Cite news |url=https://www.thehindu.com/sci-tech/science/isro-successfully-launches-gsat-7a/article25781226.ece |title=GSAT-7A, ISRO's 'angry bird', takes to the skies |last=Rohit |first=T. k |date=19 December 2018 |work=The Hindu |access-date=24 July 2019 |language=en-IN |issn=0971-751X |archive-date=1 June 2020 |archive-url=https://web.archive.org/web/20200601153940/https://www.thehindu.com/sci-tech/science/isro-successfully-launches-gsat-7a/article25781226.ece |url-status=live}}</ref><ref name=howmany /> The [[Engineering:RISAT|RISAT]] series of radar-imaging [[Astronomy:Earth observation satellite|earth observation satellite]]s is also meant for Military use.<ref>{{Cite news |url=https://www.thehindu.com/sci-tech/science/isro-launches-radar-imaging-observation-satellite-risat-2b/article27211076.ece |title=ISRO launches radar imaging observation satellite RISAT-2B |date=22 May 2019 |work=The Hindu |access-date=24 July 2019 |author=Special Correspondent |language=en-IN |issn=0971-751X |archive-url=https://web.archive.org/web/20190522193100/https://www.thehindu.com/sci-tech/science/isro-launches-radar-imaging-observation-satellite-risat-2b/article27211076.ece |archive-date=22 May 2019 |url-status=live}}</ref> ISRO launched EMISAT on 1 April 2019. EMISAT is a {{convert|436|kg|lb|adj=on}} electronic intelligence (ELINT) satellite. It will improve the situational awareness of the Indian Armed Forces by providing information and the location of hostile radars.<ref>{{Cite news |url=https://www.thehindu.com/sci-tech/technology/pslv-isro-emisat-launch-from-sriharikota-on-april-1/article26699077.ece |title=India gets surveillance satellite |last=D.s |first=Madhumathi |date=1 April 2019 |work=The Hindu |access-date=24 July 2019 |language=en-IN |issn=0971-751X |archive-url=https://web.archive.org/web/20190605075446/https://www.thehindu.com/sci-tech/technology/pslv-isro-emisat-launch-from-sriharikota-on-april-1/article26699077.ece |archive-date=5 June 2019 |url-status=live}}</ref>

India's satellites and satellite launch vehicles have had military spin-offs. While India's {{convert|93|-|124|mi|km|lk=out|adj=on|order=flip}} range Prithvi missile is not derived from the Indian space programme, the intermediate range Agni missile is derived from the Indian space programme's SLV-3. In its early years, under Sarabhai and Dhawan, ISRO opposed military applications for its dual-use projects such as the SLV-3. Eventually, the [[Organization:Defence Research and Development Organisation|Defence Research and Development Organisation]] (DRDO)-based missile programme borrowed staff and technology from ISRO. Missile scientist A.P.J. Abdul Kalam (later elected president), who had headed the SLV-3 project at ISRO, took over as missile programme at DRDO. About a dozen scientists accompanied him, helping to design the Agni missile using the SLV-3's solid fuel first stage and a liquid-fuel (Prithvi-missile-derived) second stage. The IRS and INSAT satellites were primarily intended, and used, for civilian-economic applications, but they also offered military spin-offs. In 1996 the Ministry of Defence temporarily blocked the use of IRS-1C by India's environmental and [[Organization:Ministry of Agriculture and Farmers' Welfare|agricultural ministries]] in order to monitor ballistic missiles near India's borders. In 1997, the Air Force's "Airpower Doctrine" aspired to use space assets for surveillance and battle management.<ref name=mistry94>Mistry, 94–95</ref>

=== Academic ===
Institutions like the Indira Gandhi National Open University and the Indian Institutes of Technology use satellites for educational applications.<ref name=Bhaskaranarayana1744>Bhaskaranarayana, 1744</ref> Between 1975 and 1976, India conducted its largest sociological programme using space technology, reaching 2,400{{Nbsp}}villages through video programming in local languages aimed at educational development via [[Engineering:ATS-6|ATS-6]] technology developed by NASA.{{sfn|Bhaskarnarayana|Bhatia|Bandyopadhyay|Jain|2007|p=1737}} This experiment—named Satellite Instructional Television Experiment (SITE)—conducted large-scale video broadcasts resulting in significant improvement in rural education.{{sfn|Bhaskarnarayana|Bhatia|Bandyopadhyay|Jain|2007|p=1737}}

=== Telemedicine ===
ISRO has applied its technology for [[Medicine:Telemedicine|telemedicine]], directly connecting patients in rural areas to medical professionals in urban locations via satellite.<ref name=Bhaskaranarayana1744 /> Since high-quality healthcare is not universally available in some of the remote areas of India, patients in those areas are diagnosed and analysed by doctors in urban centers in real time via video conferencing.<ref name=Bhaskaranarayana1744 /> The patient is then advised on medicine and treatment,<ref name=Bhaskaranarayana1744 /> and treated by the staff at one of the 'super-specialty hospitals' per instructions from those doctors.<ref name=Bhaskaranarayana1744 /> Mobile telemedicine vans are also deployed to visit locations in far-flung areas and provide diagnosis and support to patients.<ref name=Bhaskaranarayana1744 />

=== Biodiversity Information System ===
ISRO has also helped implement India's Biodiversity Information System, completed in October 2002.<ref name=sen490 /> Nirupa Sen details the programme: "Based on intensive field sampling and mapping using satellite remote sensing and geospatial modeling tools, maps have been made of vegetation cover on a 1: 250,000 scale. This has been put together in a web-enabled database that links gene-level information of plant species with spatial information in a BIOSPEC database of the ecological hot spot regions, namely northeastern India, Western Ghats, Western Himalayas and Andaman and Nicobar Islands. This has been made possible with collaboration between the Department of Biotechnology and ISRO."<ref name=sen490>Sen, 490</ref>

=== Cartography ===
The Indian IRS-P5 (CARTOSAT-1) was equipped with high-resolution panchromatic equipment to enable it for cartographic purposes.{{sfn|Burleson|2005|page=136}} IRS-P5 (CARTOSAT-1) was followed by a more advanced model named IRS-P6 developed also for agricultural applications.{{sfn|Burleson|2005|page=136}} The CARTOSAT-2 project, equipped with single panchromatic camera that supported scene-specific on-spot images, succeeded the CARTOSAT-1 project.{{sfn|Burleson|2005|page=143}}

=== Spin-offs ===
ISRO's research has been diverted into spin-offs to develop various technologies for other sectors. Examples include [[Biology:Prosthesis|bionic limbs]] for people without limbs, silica aerogel to keep Indian soldiers serving in extremely cold areas warm, distress alert transmitters for accidents, Doppler weather radar and various sensors and machines for inspection work in engineering industries.<ref>{{cite web |title=Space Spin Offs From ISRO |url=https://www.isro.gov.in/isro-technology-transfer/space-spin-offs-isro |website=ISRO |access-date=22 March 2021 |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413203903/https://www.isro.gov.in/isro-technology-transfer/space-spin-offs-isro |url-status=live}}</ref><ref>{{Cite web |url=http://www.unoosa.org/documents/pdf/copuos/2019/copuos2019tech39E.pdf |title=Spin-off benefits of the Indian Space Programme |last=Sreerekha |first=U |date=20 June 2019 |url-status=live |archive-url=https://web.archive.org/web/20190920224822/http://www.unoosa.org/documents/pdf/copuos/2019/copuos2019tech39E.pdf |archive-date=20 September 2019 |access-date=22 March 2021}}</ref>

== International cooperations ==
ISRO has signed various formal cooperative arrangements in the form of either Agreements or Memoranda of Understanding (MoU) or Framework Agreements with Afghanistan, Algeria, Argentina, Armenia, Australia, Bahrain, Bangladesh, Bolivia, Brazil, Brunei, Bulgaria, Canada, Chile, China, Egypt, Finland, France, Germany, Hungary, Indonesia, Israel, Italy, Japan, Kazakhstan, Kuwait, Maldives, Mauritius, Mexico, Mongolia, Morocco, Myanmar, Norway, Peru, Portugal, South Korea, Russia, São Tomé and Príncipe, Saudi Arabia, Singapore, South Africa, Spain, Oman, Sweden, Syria, Tajikistan, Thailand, Netherlands, Tunisia, Ukraine, United Arab Emirates, United Kingdom, United States, Uzbekistan, Venezuela and Vietnam. Formal cooperative instruments have been signed with international multilateral bodies including European Centre for Medium-Range Weather Forecasts (ECMWF), European Commission, European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), [[Organization:European Space Agency|European Space Agency]] (ESA) and [[Organization:South Asian Association for Regional Cooperation|South Asian Association for Regional Cooperation]] (SAARC).<ref>{{cite web |url=http://www.isro.gov.in/international-cooperation |title=ISRO – International co-operation |publisher=Indian Space Research Organisation |access-date=27 February 2015 |archive-url=https://web.archive.org/web/20150212234842/http://www.isro.gov.in/international-cooperation |archive-date=12 February 2015 |url-status=live}}</ref>

=== Notable collaborative projects ===
;
* '''[[Astronomy:Chandrayaan-1|Chandrayaan-1]]''' also carried scientific payloads to the Moon from [[Organization:NASA|NASA]], ESA, Bulgarian Space Agency, and other institutions/companies in North America and Europe.<ref>{{cite journal |last1=Bhardwaj |first1=Anil |last2=Barabash |first2=Stas |last3=Futaana |first3=Yoshifumi |last4=Kazama |first4=Yoichi |last5=Asamura |first5=Kazushi |last6=McCann |first6=David |last7=Sridharan |first7=R. |last8=Holmstrom |first8=Mats |last9=Wurz |first9=Peter |last10=Lundin |first10=Rickard |title=Low energy neutral atom imaging on the Moon with the SARA instrument aboard Chandrayaan-1 mission |url=http://www.ias.ac.in/jessci/dec2005/ilc-21.pdf |journal=Journal of Earth System Science |date=December 2005 |volume=114 |issue=6 |pages=749–760 |doi=10.1007/BF02715960 |bibcode=2005JESS..114..749B |s2cid=55554166 |access-date=21 March 2021 |archive-date=23 April 2021 |archive-url=https://web.archive.org/web/20210423110307/https://www.ias.ac.in/jessci/dec2005/ilc-21.pdf |url-status=live}}</ref>

;'''Indo-French satellite missions'''
ISRO has two collaborative satellite missions with France's [[Organization:CNES|CNES]], namely the now retired [[Engineering:Megha-Tropiques|Megha-Tropiques]] to study [[Physics:Water cycle|water cycle]] in the tropical atmosphere{{sfn|Suri|Rajaram|p=447}} and the presently avtive [[Engineering:SARAL|SARAL]] for [[Chemistry:Acid–base titration|altimetry]].<ref>{{cite web |url=http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/sara_general.html |title=Satellite SARAL |publisher=Ilrs.gsfc.nasa.gov |access-date=21 March 2021 |url-status=dead |archive-url=https://web.archive.org/web/20120705114650/http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/sara_general.html |archive-date=5 July 2012}}</ref> A third mission consisting of an Earth observation satellite with a [[Physics:Infrared|thermal infrared]] imager, TRISHNA (Thermal infraRed Imaging Satellite for High resolution Natural resource Assessment) is being planned by the two countries.<ref>{{Cite news |date=20 March 2021 |title=India, France working on third joint space mission: ISRO Chairman |url=https://www.thehindu.com/sci-tech/science/india-france-working-on-third-joint-space-mission-isro-chairman/article34115470.ece |newspaper=The Hindu |access-date=22 March 2021 |archive-date=21 March 2021 |archive-url=https://web.archive.org/web/20210321150341/https://www.thehindu.com/sci-tech/science/india-france-working-on-third-joint-space-mission-isro-chairman/article34115470.ece |url-status=live}}</ref>
;LUPEX
The Lunar Polar Exploration Mission (LUPEX) is a joint Indo-Japanese mission to study the polar surface of the Moon where India is tasked with providing soft landing technologies.<ref name="Episode 82">{{cite web |url=https://astrotalkuk.org/episode-82-jaxa-and-international-collaboration-with-professor-fujimoto-masaki/ |title=Episode 82: JAXA and International Collaboration with Professor Fujimoto Masaki |publisher=Astro Talk UK |date=4 January 2019 |access-date=10 March 2021 |archive-date=16 January 2021 |archive-url=https://web.archive.org/web/20210116033628/https://astrotalkuk.org/episode-82-jaxa-and-international-collaboration-with-professor-fujimoto-masaki/ |url-status=live}}</ref>

;NISAR
[[Earth:NISAR (satellite)|NASA-ISRO Synthetic Aperture Radar]] (NISAR) is a joint Indo-US radar project carrying an L Band and an S Band radar. It will be world's first radar imaging satellite to use dual frequencies.<ref>{{cite web |title=U.S., India to Collaborate on Mars Exploration, Earth-Observing Mission |url=http://www.nasa.gov/press/2014/september/us-india-to-collaborate-on-mars-exploration-earth-observing-mission/ |website=NASA official website |date=30 September 2014 |publisher=National Aeronautics and Space Administration |access-date=1 October 2014 |archive-url=https://web.archive.org/web/20140930211905/http://www.nasa.gov/press/2014/september/us-india-to-collaborate-on-mars-exploration-earth-observing-mission/ |archive-date=30 September 2014 |url-status=live}}</ref>

<u>Some other notable collaborations include:</u>
* ISRO operates LUT/MCC under the international COSPAS/SARSAT Programme for Search and Rescue.<ref name="LUT1">{{cite web |title=Satellite Aided Search and Rescue |url=https://www.isro.gov.in/applications/satellite-aided-search-and-rescue |website=ISRO |access-date=22 July 2022 |archive-date=6 August 2022 |archive-url=https://web.archive.org/web/20220806183209/https://www.isro.gov.in/applications/satellite-aided-search-and-rescue |url-status=dead}}</ref>
* India has established a Centre for Space Science and Technology Education in Asia and the Pacific (CSSTE-AP) that is sponsored by the United Nations.<ref name="CSSTEAP1">{{cite web |title=Center for Space Science and Technology Education in Asia and the Pacific (CSSTEAP) |url=https://www.un-spider.org/center-space-science-and-technology-education-asia-and-pacific-cssteap |website=[[Earth:UN-SPIDER|UN-SPIDER]] |access-date=22 July 2022 |archive-date=22 July 2022 |archive-url=https://web.archive.org/web/20220722171916/https://www.un-spider.org/center-space-science-and-technology-education-asia-and-pacific-cssteap |url-status=live }}</ref>
* India is a member of the United Nations Committee on the Peaceful Uses of Outer Space, Cospas-Sarsat, [[Organization:International Astronautical Federation|International Astronautical Federation]], Committee on Space Research (COSPAR), [[Organization:Inter-Agency Space Debris Coordination Committee|Inter-Agency Space Debris Coordination Committee]] (IADC), International Space University, and the Committee on Earth Observation Satellite (CEOS).{{sfn|Suri|Rajaram|p=447}}
* Contributing to planned [[Organization:BRICS|BRICS]] virtual constellation for [[Earth:Remote sensing|remote sensing]].<ref>{{Cite web |url=http://www.unoosa.org/documents/pdf/copuos/2019/copuos2019tech44E.pdf |title=Update on ISRO's International Cooperation |last=Kunhikrishnan |first=P. |date=20 June 2019 |page=10 |access-date=30 June 2019 |archive-url=https://web.archive.org/web/20190630161422/http://www.unoosa.org/documents/pdf/copuos/2019/copuos2019tech44E.pdf |archive-date=30 June 2019 |url-status=live}}</ref><ref>{{Cite web |url=https://ria.ru/20190628/1555995527.html |title=В орбитальную группировку стран БРИКС войдут пять космических аппаратов |date=28 June 2019 |website=РИА Новости |language=ru |access-date=30 June 2019 |archive-url=https://web.archive.org/web/20190707194515/https://ria.ru/20190628/1555995527.html |archive-date=7 July 2019 |url-status=live}}</ref>

== Statistics ==
Last updated: 26 March 2023
* Total number of foreign satellites launched by ISRO: 417 (34 countries)<ref>{{Cite web |date=23 October 2022 |title=List of International Customer Satellites Launched by ISRO |url=https://www.isro.gov.in/media_isro/pdf/ForeignSatellites/381_foreign_satellites.pdf |archive-url=https://web.archive.org/web/20221024134415/https://www.isro.gov.in/media_isro/pdf/ForeignSatellites/381_foreign_satellites.pdf |archive-date=24 October 2022 |access-date=24 October 2022}}</ref>
* Spacecraft missions: 116<ref>{{Cite web |title=Missions accomplished |url=https://www.isro.gov.in/Mission.html |access-date=2022-10-24 |website=www.isro.gov.in |archive-date=14 October 2022 |archive-url=https://web.archive.org/web/20221014133052/https://www.isro.gov.in/Mission.html |url-status=live }}</ref>
* Launch missions: 86
* Student satellites: 13 <ref>{{Cite web |url=https://www.isro.gov.in/spacecraft/list-of-university-academic-institute-satellites |title=List of University / Academic Institute Satellites – ISRO |website=www.isro.gov.in |access-date=4 December 2019 |archive-date=19 August 2019 |archive-url=https://web.archive.org/web/20190819011224/https://www.isro.gov.in/spacecraft/list-of-university-academic-institute-satellites |url-status=live}}</ref>
* Re-entry missions: 2

=== Budget for the Department of Space ===
{| class="wikitable"
! rowspan="2" |Calendar Year
! rowspan="2" |GDP (2011–12 base year) in crores(₹)<ref name="EcoSurStats_2021-22">{{cite web |title=Economic Survey 2021–22 Statistical Appendix |url=https://www.indiabudget.gov.in/economicsurvey/doc/Statistical-Appendix-in-English.pdf |access-date=29 May 2022 |archive-url=https://web.archive.org/web/20220511132241/https://www.indiabudget.gov.in/economicsurvey/doc/Statistical-Appendix-in-English.pdf |archive-date=11 May 2022 |page=17 |quote=Table 1.6: Components of Gross Domestic Product at Current Prices}}</ref>
! rowspan="2" |Total Expenditure in crores (₹)
! colspan="4" |Budget of Department of Space<ref name="DoS_DDG">{{cite web |title=Archive of Demands for Grants |url=https://www.isro.gov.in/archive-of-demands-grants |access-date=29 May 2022 |archive-url=https://web.archive.org/web/20220529041437/https://www.isro.gov.in/archive-of-demands-grants |archive-date=29 May 2022}}</ref>
! rowspan="2" |Notes and references
|-
! style="border-color:inherit;" | Nominal INR (crore)
! % of GDP
!% of Total Expenditure
!2020 Constant INR (crore)
|-
| 1972–73
|55245
|
| 18.2325000
| {{Percentage|18.2325000|55245|2}}
|
| Revised Estimate as Actuals are not available <ref name="DDGDOS_1973-74">{{cite web |title=Detailed Demands of Grants of Department of Space for 1973–74 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1973-74.pdf |page=06 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083924/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1973-74.pdf |url-status=live}}</ref><ref name="DDGDOS_1974-75">{{cite web |title=Detailed Demands of Grants of Department of Space for 1974–75 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1974-75.pdf |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083931/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1974-75.pdf |url-status=live}}</ref>
|-
| 1973–74
|67241
|
| 19.0922000
| {{Percentage|19.0922000|67241|2}}
|
| Revised Estimate as Actuals are not available <ref name="DDGDOS_1974-75-13">{{cite web |title=Detailed Demands of Grants of Department of Space for 1974–75 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1974-75.pdf |page=13 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083931/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1974-75.pdf |url-status=dead}}</ref><ref name="DDGDOS_1975-76">{{cite web |title=Detailed Demands of Grants of Department of Space for 1975–76 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1975-76.pdf |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084025/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1975-76.pdf |url-status=live}}</ref>
|-
| 1974–75
|79378
|
| 30.7287000
| {{Percentage|30.7287000|79378|2}}
|
| <ref name="DDGDOS_1976-77">{{cite web |title=Detailed Demands of Grants of Department of Space for 1976–77 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1976-77.pdf |page=27 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083931/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1976-77.pdf |url-status=live}}</ref>
|-
| 1975–76
|85212
|
| 36.8379000
| {{Percentage|36.8379000|85212|2}}
|
| <ref name="DDGDOS_1977-78">{{cite web |title=Detailed Demands of Grants of Department of Space for 1977–78 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1977-78.pdf |page=32 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084006/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1977-78.pdf |url-status=live}}</ref>
|-
| 1976–77
|91812
|
| 41.1400000
| {{Percentage|41.1400000|91812|2}}
|
| Revised Estimate as Actuals are not available <ref name="DDGDOS_1977-78" />
|-
| 1977–78
|104024
|
| 37.3670000
| {{Percentage|37.3670000|104024|2}}
|
| <ref name="DDGDOS_1979-80">{{cite web |title=Detailed Demands of Grants of Department of Space for 1979–80 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1979-80.pdf |page=33 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083913/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1979-80.pdf |url-status=live}}</ref>
|-
| 1978–79
|112671
|
| 51.4518000
| {{Percentage|51.4518000|112671|2}}
|
| <ref name="DDGDOS_1980-81">{{cite web |title=Detailed Demands of Grants of Department of Space for 1980–81 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1980-81.pdf |page=36 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083949/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1980-81.pdf |url-status=live}}</ref>
|-
| 1979–80
|123562
|
| 57.0062000
| {{Percentage|57.0062000|123562|2}}
|
| <ref name="DDGDOS_1981-82">{{cite web |title=Detailed Demands of Grants of Department of Space for 1981–82 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1981-82.pdf |page=36 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083942/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1981-82.pdf |url-status=live}}</ref>
|-
| 1980–81
|147063
|
| 82.1087000
| {{Percentage|82.1087000|147063|2}}
|
| <ref name="DDGDOS_1982-83-39">{{cite web |title=Detailed Demands of Grants of Department of Space for 1982–83 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1982-83.pdf |page=39 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083939/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1982-83.pdf |url-status=live}}</ref>
|-
| 1981–82
|172776
|
| 109.132100
| {{Percentage|109.132100|172776|2}}
|
| Revised Estimate as Actuals are not available <ref name="DDGDOS_1982-83-38">{{cite web |title=Detailed Demands of Grants of Department of Space for 1982–83 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1982-83.pdf |page=38 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083939/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1982-83.pdf |url-status=dead}}</ref><ref name="DDGDOS_1983-84">{{cite web |title=Detailed Demands of Grants of Department of Space for 1983–84 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1983-84.pdf |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084002/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1983-84.pdf |url-status=live}}</ref>
|-
| 1982–83
|193255
|
| 94.8898000
| {{Percentage|94.8898000|193255|2}}
|
| <ref name="DDGDOS_1984-85">{{cite web |title=Detailed Demands of Grants of Department of Space for 1984–85 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1984-85.pdf |page=48 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083920/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1984-85.pdf |url-status=live}}</ref>
|-
| 1983–84
|225074
|
| 163.365600
| {{Percentage|163.365600|225074|2}}
|
| <ref name="DDGDOS_1985-86">{{cite web |title=Detailed Demands of Grants of Department of Space for 1985–86 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1985-86.pdf |page=53 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084405/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1985-86.pdf |url-status=live}}</ref>
|-
| 1984–85
|252188
|
| 181.601000
| {{Percentage|181.601000|252188|2}}
|
| <ref name="DDGDOS_1986-87">{{cite web |title=Detailed Demands of Grants of Department of Space for 1986–87 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1986-87.pdf |page=49 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083958/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1986-87.pdf |url-status=live}}</ref>
|-
| 1985–86
|284534
|
| 229.102300
| {{Percentage|229.102300|284534|2}}
|
| <ref name="DDGDOS_1987-88">{{cite web |title=Detailed Demands of Grants of Department of Space for 1987–88 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1987-88.pdf |page=45 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083925/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1987-88.pdf |url-status=live}}</ref>
|-
| 1986–87
|318366
|
| 309.990900
| {{Percentage|309.990900|318366|2}}
|
| <ref name="DDGDOS_1988-89">{{cite web |title=Detailed Demands of Grants of Department of Space for 1988–89 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1988-89.pdf |page=48 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083955/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1988-89.pdf |url-status=live}}</ref>
|-
| 1987–88
|361865
|
| 347.084600
| {{Percentage|347.084600|361865|2}}
|
| <ref name="DDGDOS_1989-90">{{cite web |title=Detailed Demands of Grants of Department of Space for 1989–90 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1989-90.pdf |page=50 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083911/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1989-90.pdf |url-status=live}}</ref>
|-
| 1988–89
|429363
|
| 422.367000
| {{Percentage|422.367000|429363|2}}
|
| <ref name="DDGDOS_1990-91">{{cite web |title=Detailed Demands of Grants of Department of Space for 1990–91 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1990-91.pdf |page=48 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083924/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1990-91.pdf |url-status=live}}</ref>
|-
| 1989–90
|493278
|
| 398.559500
| {{Percentage|398.559500|493278|2}}
|
| <ref name="DDGDOS_1991-92">{{cite web |title=Detailed Demands of Grants of Department of Space for 1991–92 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1991-92.pdf |page=50 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083931/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1991-92.pdf |url-status=live}}</ref>
|-
| 1990–91
|576109
|105298
| 386.221800
| {{Percentage|386.221800|576109|2}}
|{{Percentage|386.221800|105298 |2}}
| <ref name="DDGDOS_1992-93">{{cite web |title=Detailed Demands of Grants of Department of Space for 1992–93 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1992-93.pdf |page=52 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084038/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1992-93.pdf |url-status=live}}</ref><ref name="TrendsEx_1990-1998">{{Cite web |title=1999–2000 Expenditure Budget Vol. I: Trends in Expenditure |url=https://www.indiabudget.gov.in/budget_archive/ub1999-2000/eb/trend.pdf |access-date=30 May 2022 |archive-date=20 May 2022 |archive-url=https://web.archive.org/web/20220520165656/https://www.indiabudget.gov.in/budget_archive/ub1999-2000/eb/trend.pdf |url-status=live}}</ref>
|-
| 1991–92
|662260
|111414
| 460.101000
| {{Percentage|460.101000|662260|2}}
|{{Percentage|460.101000|111414 |2}}
| <ref name="DDGDOS_1993-94">{{cite web |title=Detailed Demands of Grants of Department of Space for 1993–94 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1993-94.pdf |page=54 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084039/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1993-94.pdf |url-status=live}}</ref><ref name="TrendsEx_1990-1998" />
|-
| 1992–93
|761196
|122618
| 490.920400
| {{Percentage|490.920400|761196|2}}
|{{Percentage|490.920400|122618 |2}}
| <ref name="DDGDOS_1994-95">{{cite web |title=Detailed Demands of Grants of Department of Space for 1994–95 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1994-95.pdf |page=51 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083931/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1994-95.pdf |url-status=live}}</ref><ref name="TrendsEx_1990-1998" />
|-
| 1993–94
|875992
|141853
| 695.335000
| {{Percentage|695.335000|875992|2}}
|{{Percentage|695.335000|141853 |2}}
| <ref name="DDGDOS_1995-96">{{cite web |title=Detailed Demands of Grants of Department of Space for 1995–96 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1995-96.pdf |page=65 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083936/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1995-96.pdf |url-status=live}}</ref><ref name="TrendsEx_1990-1998" />
|-
| 1994–95
|1027570
|160739
| 759.079300
| {{Percentage|759.079300|1027570|2}}
|{{Percentage|759.079300|160739 |2}}
| <ref name="DDGDOS_1996-97">{{cite web |title=Detailed Demands of Grants of Department of Space for 1996–97 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1996-97.pdf |page=38 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083945/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1996-97.pdf |url-status=live}}</ref><ref name="TrendsEx_1990-1998" /><ref name="TrendsEx_1994-2002">{{Cite web |title=2003–2004 Expenditure Budget Vol. I: Trends in Expenditure |url=https://www.indiabudget.gov.in/budget_archive/ub2003-04/eb/trend.pdf |access-date=30 May 2022 |archive-date=20 May 2022 |archive-url=https://web.archive.org/web/20220520170435/https://www.indiabudget.gov.in/budget_archive/ub2003-04/eb/trend.pdf |url-status=live}}</ref>
|-
| 1995–96
|1205583
|178275
| 755.778596
| {{Percentage|755.778596|1205583|2}}
|{{Percentage|755.778596|178275 |2}}
| <ref name="DDGDOS_1997-98">{{cite web |title=Detailed Demands of Grants of Department of Space for 1997–98 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1997-98.pdf |page=38 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083954/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1997-98.pdf |url-status=live}}</ref><ref name="TrendsEx_1990-1998" /><ref name="TrendsEx_1994-2002" />
|-
| 1996–97
|1394816
|201007
| 1062.44660
| {{Percentage|1062.44660|1394816|2}}
|{{Percentage|1062.44660|201007 |2}}
| <ref name="DDGDOS_1998-99">{{cite web |title=Detailed Demands of Grants of Department of Space for 1998–99 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1998-99.pdf |page=38 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083915/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1998-99.pdf |url-status=live}}</ref><ref name="TrendsEx_1990-1998" /><ref name="TrendsEx_1994-2002" />
|-
| 1997–98
|1545294
|232053
| 1050.50250
| {{Percentage|1050.50250|1545294|2}}
|{{Percentage|1050.50250|232053 |2}}
| <ref name="DDGDOS_1999-2000">{{cite web |title=Detailed Demands of Grants of Department of Space for 1999–2000 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1999-2000.pdf |page=40 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083926/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-1999-2000.pdf |url-status=live}}</ref><ref name="TrendsEx_1994-2002" />
|-
| 1998–99
|1772297
|279340
| 1401.70260
| {{Percentage|1401.70260|1772297|2}}
|{{Percentage|1401.70260|279340 |2}}
| <ref name="DDGDOS_2000-2001">{{cite web |title=Detailed Demands of Grants of Department of Space for 2000–2001 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2000-2001.pdf |page=41 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013091643/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2000-2001.pdf |url-status=live}}</ref><ref name="TrendsEx_1994-2002" /><ref name="TrendsEx_1998-2006">{{Cite web |title=Expenditure Budget Vol. I, 2007–2008: Trends in Expenditure |url=https://www.indiabudget.gov.in/budget_archive/ub2007-08/eb/trend.pdf |access-date=30 May 2022 |archive-date=30 May 2022 |archive-url=https://web.archive.org/web/20220530200920/https://www.indiabudget.gov.in/budget_archive/ub2007-08/eb/trend.pdf |url-status=live}}</ref>
|-
| 1999-00
|1988262
|298053
| 1677.38580
| {{Percentage|1677.38580|1988262|2}}
|{{Percentage|1677.38580|298053 |2}}
| <ref name="DDGDOS_2001-02">{{cite web |title=Detailed Demands of Grants of Department of Space for 2001–2002 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2001-2002.pdf |page=41 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084023/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2001-2002.pdf |url-status=live}}</ref><ref name="TrendsEx_1994-2002" /><ref name="TrendsEx_1998-2006" />
|-
| 2000–01
|2139886
|325592
| 1905.39970
| {{Percentage|1905.39970|2139886|2}}
|{{Percentage|1905.39970|325592 |2}}
| <ref name="DDGDOS_2002-2003">{{cite web |title=Detailed Demands of Grants of Department of Space for 2002–2003 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2002-2003.pdf |page=47 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083923/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2002-2003.pdf |url-status=live}}</ref><ref name="TrendsEx_1994-2002" /><ref name="TrendsEx_1998-2006" />
|-
| 2001–02
|2315243
|362310
| 1900.97370
| {{Percentage|1900.97370|2315243|2}}
|{{Percentage|1900.97370|362310 |2}}
| <ref name="DDGDOS_2003-2004">{{cite web |title=Detailed Demands of Grants of Department of Space for 2003–2004 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2003-2004.pdf |page=41 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083940/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2003-2004.pdf |url-status=live}}</ref><ref name="TrendsEx_1998-2006" /><ref name="TrendsEx_2001-2009">{{Cite web |title=Expenditure Budget Vol. I, 2010–2011: Trends in Expenditure |url=https://www.indiabudget.gov.in/budget_archive/ub2010-11/eb/trend.pdf |access-date=30 May 2022 |archive-date=20 May 2022 |archive-url=https://web.archive.org/web/20220520170234/https://www.indiabudget.gov.in/budget_archive/ub2010-11/eb/trend.pdf |url-status=live}}</ref>
|-
| 2002–03
|2492614
|413248
| 2162.22480
| {{Percentage|2162.22480|2492614|2}}
|{{Percentage|2162.22480|413248 |2}}
| <ref name="DDGDOS_2004-2005">{{cite web |title=Detailed Demands of Grants of Department of Space for 2004–2005 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2004-2005.pdf |page=42 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083918/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2004-2005.pdf |url-status=live}}</ref><ref name="TrendsEx_1998-2006" /><ref name="TrendsEx_2001-2009" />
|-
| 2003–04
|2792530
|471203
| 2268.80470
| {{Percentage|2268.80470|2792530|2}}
|{{Percentage|2268.80470|471203 |2}}
| <ref name="DDGDOS_2005-2006">{{cite web |title=Detailed Demands of Grants of Department of Space for 2005–2006 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2005-2006.pdf |page=48 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083925/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2005-2006.pdf |url-status=live}}</ref><ref name="TrendsEx_1998-2006" /><ref name="TrendsEx_2001-2009" />
|-
| 2004–05
|3186332
|498252
| 2534.34860
| {{Percentage|2534.34860|3186332|2}}
|{{Percentage|2534.34860|498252 |2}}
| <ref name="DDGDOS_2006-2007">{{cite web |title=Detailed Demands of Grants of Department of Space for 2006–2007 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2006-2007.pdf |page=48 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083914/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2006-2007.pdf |url-status=live}}</ref><ref name="TrendsEx_1998-2006" /><ref name="TrendsEx_2001-2009" />
|-
| 2005–06
|3632125
|505738
| 2667.60440
| {{Percentage|2667.60440|3632125|2}}
|{{Percentage|2667.60440|505738 |2}}
| <ref name="DDGDOS_2007-2008">{{cite web |title=Detailed Demands of Grants of Department of Space for 2007–2008 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2007-2008.pdf |page=53 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083932/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2007-2008.pdf |url-status=live}}</ref><ref name="TrendsEx_1998-2006" /><ref name="TrendsEx_2001-2009" />
|-
| 2006–07
|4254629
|583387
| 2988.66550
| {{Percentage|2988.66550|4254629|2}}
|{{Percentage|2988.66550|583387 |2}}
| <ref name="DDGDOS_2008-2009">{{cite web |title=Detailed Demands of Grants of Department of Space for 2008–2009 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2008-2009.pdf |page=50 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083949/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2008-2009.pdf |url-status=live}}</ref><ref name="TrendsEx_2001-2009" /><ref name="TrendsEx_2006-2014">{{Cite web |title=Expenditure Budget Vol. I, 2015–2016: Trends in Expenditure |url=https://www.indiabudget.gov.in/budget2015-2016/ub2015-16/eb/trend.pdf |access-date=30 May 2022 |archive-date=20 May 2022 |archive-url=https://web.archive.org/web/20220520165527/https://www.indiabudget.gov.in/budget2015-2016/ub2015-16/eb/trend.pdf |url-status=live}}</ref>
|-
| 2007–08
|4898662
|712671
| 3278.00440
| {{Percentage|3278.00440|4898662|2}}
|{{Percentage|3278.00440|712671 |2}}
| <ref name="DDGDOS_2009-2010">{{cite web |title=Detailed Demands of Grants of Department of Space for 2009–2010 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2009-2010.pdf |page=52 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083928/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2009-2010.pdf |url-status=live}}</ref><ref name="TrendsEx_2001-2009" /><ref name="TrendsEx_2006-2014" />
|-
| 2008–09
|5514152
|883956
| 3493.57150
| {{Percentage|3493.57150|5514152|2}}
|{{Percentage|3493.57150|883956 |2}}
| <ref name="DDGDOS_2010-2011">{{cite web |title=Detailed Demands of Grants of Department of Space for 2010–2011 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2010-2011.pdf |page=46 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083930/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2010-2011.pdf |url-status=live}}</ref><ref name="TrendsEx_2001-2009" /><ref name="TrendsEx_2006-2014" />
|-
| 2009–10
|6366407
|1024487
| 4162.95990
| {{Percentage|4162.95990|6366407|2}}
|{{Percentage|4162.95990|1024487|2}}
| <ref name="DDGDOS_2011-2012">{{cite web |title=Detailed Demands of Grants of Department of Space for 2011–2012 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2011-2012.pdf |page=46 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084050/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2011-2012.pdf |url-status=live}}</ref><ref name="TrendsEx_2006-2014" />
|-
| 2010–11
|7634472
|1197328
| 4482.23150
| {{Percentage|4482.23150|7634472|2}}
|{{Percentage|4482.23150|1197328|2}}
| <ref name="DDGDOS_2012-2013">{{cite web |title=Detailed Demands of Grants of Department of Space for 2012–2013 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2012-2013.pdf |page=43 |access-date=30 May 2022 |archive-date=30 May 2022 |archive-url=https://web.archive.org/web/20220530200919/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2012-2013.pdf |url-status=live}}</ref><ref name="TrendsEx_2006-2014" />
|-
| 2011–12
|8736329
|1304365
| 3790.78880
| {{Percentage|3790.78880|8736329|2}}
|{{Percentage|3790.78880|1304365|2}}
| <ref name="DDGDOS_2013-2014">{{cite web |title=Detailed Demands of Grants of Department of Space for 2013–2014 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2013-2014.pdf |page=49 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084039/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2013-2014.pdf |url-status=live}}</ref><ref name="TrendsEx_2006-2014" />
|-
| 2012–13
|9944013
|1410372
| 4856.28390
| {{Percentage|4856.28390|9944013|2}}
|{{Percentage|4856.28390|1410372|2}}
| <ref name="DDGDOS_2014-2015">{{cite web |title=Detailed Demands of Grants of Department of Space for 2014–2015 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2014-2015.pdf |page=53 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084014/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2014-2015.pdf |url-status=live}}</ref><ref name="TrendsEx_2006-2014" />
|-
| 2013–14
|11233522
|1559447
| 5168.95140
| {{Percentage|5168.95140|11233522|2}}
|{{Percentage|5168.95140|1559447|2}}
| <ref name="DDGDOS_2015-2016">{{cite web |title=Detailed Demands of Grants of Department of Space for 2015–2016 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2015-2016.pdf |page=58 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084027/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2015-2016.pdf |url-status=live}}</ref><ref name="TrendsEx_2006-2014" />
|-
| 2014–15
|12467960
|1663673
| 5821.36630
| {{Percentage|5821.36630|12467960|2}}
|{{Percentage|5821.36630|1663673|2}}
| <ref name="DDGDOS_2016-2017">{{cite web |title=Detailed Demands of Grants of Department of Space for 2016–2017 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2016-2017.pdf |page=74 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083913/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2016-2017.pdf |url-status=live}}</ref><ref name="TrendsEx_2014-2015">{{Cite web |title=Budget at a Glance 2016–2017 |url=https://www.indiabudget.gov.in/budget2016-2017/ub2016-17/bag/bag11.pdf |page=3 |access-date=30 May 2022 |archive-date=20 May 2022 |archive-url=https://web.archive.org/web/20220520182832/https://www.indiabudget.gov.in/budget2016-2017/ub2016-17/bag/bag11.pdf |url-status=live}}</ref>
|-
| 2015–16
|13771874
|1790783
| 6920.00520
| {{Percentage|6920.00520|13771874|2}}
|{{Percentage|6920.00520|1790783|2}}
| <ref name="DDGDOS_2017-2018">{{cite web |title=Detailed Demands of Grants of Department of Space for 2017–2018 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2017-2018.pdf |page=83 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083924/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2017-2018.pdf |url-status=live}}</ref><ref name="TrendsEx_2015-2016">{{Cite web |title=Budget at a Glance 2017–2018 |url=https://www.indiabudget.gov.in/budget2017-2018/ub2017-18/bag/bag1.pdf |page=3 |access-date=30 May 2022 |archive-date=9 March 2022 |archive-url=https://web.archive.org/web/20220309024549/https://www.indiabudget.gov.in/budget2017-2018/ub2017-18/bag/bag1.pdf |url-status=live}}</ref>
|-
| 2016–17
|15391669
|1975194
| 8039.99680
| {{Percentage|8039.99680|15391669|2}}
|{{Percentage|8039.99680|1975194|2}}
| <ref name="DDGDOS_2018_-2019">{{cite web |title=Detailed Demands of Grants of Department of Space for 2018–2019 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2018_-2019.pdf |page=76 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083956/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2018_-2019.pdf |url-status=live}}</ref><ref name="TrendsEx_2016-2017">{{Cite web |title=Budget at a Glance 2018–2019 |url=https://www.indiabudget.gov.in/budget2018-2019/ub2018-19/bag/bag1.pdf |page=3 |access-date=30 May 2022 |archive-date=20 May 2022 |archive-url=https://web.archive.org/web/20220520182421/https://www.indiabudget.gov.in/budget2018-2019/ub2018-19/bag/bag1.pdf |url-status=live}}</ref>
|-
| 2017–18
|17090042
|2141975
| 9130.56640
| {{Percentage|9130.56640|17090042|2}}
|{{Percentage|9130.56640|2141973|2}}
| <ref name="DDGDOS_2019-2020">{{cite web |title=Detailed Demands of Grants of Department of Space for 2019–2020 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2019-2020.pdf |page=91 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013084105/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2019-2020.pdf |url-status=live}}</ref><ref name="TrendsEx_2017-2018">{{Cite web |title=Budget at a Glance 2019–2020 |url=https://www.indiabudget.gov.in/budget2019-20/doc/Budget_at_Glance/bag1.pdf |page=3 |access-date=30 May 2022 |archive-date=20 May 2022 |archive-url=https://web.archive.org/web/20220520182237/https://www.indiabudget.gov.in/budget2019-20/doc/Budget_at_Glance/bag1.pdf |url-status=live}}</ref>
|-
| 2018–19
|18899668
|2315113
| 11192.6566
| {{Percentage|11192.6566|18899668|2}}
|{{Percentage|11192.6566|2315113|2}}
| <ref name="DDGDOS_2020-2021">{{cite web |title=Detailed Demands of Grants of Department of Space for 2020–2021 |url=https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2020-2021.pdf |page=93 |access-date=30 May 2022 |archive-date=13 October 2021 |archive-url=https://web.archive.org/web/20211013083913/https://www.isro.gov.in/sites/default/files/article-files/node/16003/ddg-2020-2021.pdf |url-status=live}}</ref><ref name="TrendsEx_2018-2019">{{Cite web |title=Budget at a Glance 2020–2021 |url=https://www.indiabudget.gov.in/budget2020-21/doc/Budget_at_Glance/bag1.pdf |page=3 |access-date=30 May 2022 |archive-date=20 May 2022 |archive-url=https://web.archive.org/web/20220520181151/https://www.indiabudget.gov.in/budget2020-21/doc/Budget_at_Glance/bag1.pdf |url-status=live}}</ref>
|-
| 2019–20
|20074856
|2686330
| 13033.2917
| {{Percentage|13033.2917|20074856|2}}
|{{Percentage|13033.2917|2686330|2}}
| <ref name="DDGDOS_2021-22">{{cite web |title=Detailed Demands of Grants of Department of Space for 2021–22 |url=https://www.isro.gov.in/sites/default/files/article-files/right-to-information/ddg_2021-22_final.pdf |page=94 |access-date=30 May 2022 |archive-date=16 July 2021 |archive-url=https://web.archive.org/web/20210716075950/https://www.isro.gov.in/sites/default/files/article-files/right-to-information/ddg_2021-22_final.pdf |url-status=live}}</ref><ref name="TrendsEx_2019-2020">{{Cite web |title=Budget at a Glance 2021–2022 |url=https://www.indiabudget.gov.in/budget2021-22/doc/Budget_at_Glance/budget_at_a_glance.pdf |page=3 |access-date=30 May 2022 |archive-date=1 April 2022 |archive-url=https://web.archive.org/web/20220401072554/https://www.indiabudget.gov.in/budget2021-22/doc/Budget_at_Glance/budget_at_a_glance.pdf |url-status=live}}</ref>
|-
| 2020–21
|19800914
|3509836
| 9490.05390
| {{Percentage|9490.05390|19800914|2}}
|{{Percentage|9490.05390|3509836|2}}
| <ref name="DDGDOS_2022-23">{{cite web |title=Detailed Demands of Grants of Department of Space for 2022–23 |url=https://www.isro.gov.in/sites/default/files/article-files/archive-of-demands-grants/ddg_2022-23.pdf |page=97 |access-date=30 May 2022 |archive-date=24 March 2022 |archive-url=https://web.archive.org/web/20220324130418/https://www.isro.gov.in/sites/default/files/article-files/archive-of-demands-grants/ddg_2022-23.pdf |url-status=live}}</ref><ref name="TrendsEx_2020-2021">{{Cite web |title=Budget at a Glance 2022–2023 |url=https://www.indiabudget.gov.in/doc/Budget_at_Glance/budget_at_a_glance.pdf |page=5 |access-date=30 May 2022 |archive-date=31 March 2022 |archive-url=https://web.archive.org/web/20220331124734/https://www.indiabudget.gov.in/doc/Budget_at_Glance/budget_at_a_glance.pdf |url-status=live}}</ref>
|-
|2021–22
|23664637
|3793801
|12473.84
|{{Percentage|12473.84|23664637|2}}
|{{Percentage|12473.84|3793801|2}}
|<ref>{{Cite web |date=1 February 2023 |title=Components of Gross Domestic Product at Current Prices |url=https://www.indiabudget.gov.in/economicsurvey/doc/stat/tab16.pdf |archive-url=https://web.archive.org/web/20230222173837/https://www.indiabudget.gov.in/economicsurvey/doc/stat/tab16.pdf |archive-date=22 February 2023 |page=3}}</ref><ref>{{Cite web |date=1 February 2023 |title=Budget at a Glance 2023–2024 |url=https://www.indiabudget.gov.in/doc/Budget_at_Glance/budget_at_a_glance.pdf |archive-url=https://web.archive.org/web/20230207044816/https://www.indiabudget.gov.in/doc/Budget_at_Glance/budget_at_a_glance.pdf |archive-date=7 February 2023 |page=5}}</ref><ref>{{Cite web |date=1 February 2023 |title=Expeniture Budget 2023–2024 |url=https://www.indiabudget.gov.in/doc/eb/allsbe.pdf |archive-url=https://web.archive.org/web/20230201114025/https://www.indiabudget.gov.in/doc/eb/allsbe.pdf |archive-date=1 February 2023 |page=334}}</ref>
|}

== Corporate affairs ==

=== S-band spectrum scam ===

In India, [[Physics:Electromagnetic spectrum|electromagnetic spectrum]], a scarce resource for wireless communication, is auctioned by the Government of India to telecom companies for use. As an example of its value, in 2010, 20 [[Megahertz|MHz]] of [[3G|3G]] spectrum was auctioned for {{INRConvert|677|b}}. This part of the spectrum is allocated for terrestrial communication (cell phones). However, in January 2005, Antrix Corporation (commercial arm of ISRO) signed an agreement with Devas Multimedia (a private company formed by former ISRO employees and venture capitalists from the US) for lease of [[Astronomy:S band|S band]] transponders (amounting to 70&nbsp;MHz of spectrum) on two ISRO satellites (GSAT 6 and GSAT 6A) for a price of {{INRConvert|14|b}}, to be paid over a period of 12 years. The spectrum used in these satellites (2500&nbsp;MHz and above) is allocated by the [[Organization:International Telecommunication Union|International Telecommunication Union]] specifically for satellite-based communication in India. Hypothetically, if the spectrum allocation is changed for utilisation for terrestrial transmission and if this 70&nbsp;MHz of spectrum were sold at the 2010 auction price of the 3G spectrum, its value would have been over {{INRConvert|2000|b}}. This was a hypothetical situation. However, the Comptroller and Auditor-General considered this hypothetical situation and estimated the difference between the prices as a loss to the Indian Government.<ref name="Thakur, Pradeep">{{cite news |url=https://timesofindia.indiatimes.com/india/Another-spectrum-scam-hits-govt-this-time-from-ISRO/articleshow/7445139.cms |title=Another spectrum scam hits govt, this time from ISRO |last=Thakur |first=Pradeep |date=8 February 2011 |work=The Times of India |access-date=23 January 2018 |location=New Delhi |archive-url=https://web.archive.org/web/20190727213455/https://timesofindia.indiatimes.com/india/Another-spectrum-scam-hits-govt-this-time-from-ISRO/articleshow/7445139.cms |archive-date=27 July 2019 |url-status=live}}</ref><ref name="Behind the S-band spectrum scandal">{{cite news |url=http://www.thehindu.com/opinion/editorial/behind-the-sband-spectrum-scandal/article1200374.ece |title=Behind the S-band spectrum scandal |work=The Hindu |date=28 September 2011 |access-date=6 February 2015 |archive-url=https://web.archive.org/web/20140219053426/http://www.thehindu.com/opinion/editorial/behind-the-sband-spectrum-scandal/article1200374.ece |archive-date=19 February 2014 |url-status=live}}</ref>

There were lapses on implementing official procedures. Antrix/ISRO had allocated the capacity of the above two satellites exclusively to Devas Multimedia, while the rules said it should always be non-exclusive. The Cabinet was misinformed in November 2005 that several service providers were interested in using satellite capacity, while the Devas deal was already signed. Also, the Space Commission was not informed when approving the second satellite (its cost was diluted so that Cabinet approval was not needed). ISRO committed to spending {{INRConvert|7.66|b}} of public money on building, launching, and operating two satellites that were leased out for Devas.<ref name="ETDevdas">{{cite news |last1=Bureau |first1=ET |title=Devas Multimedia-Antrix deal: A timeline of ongoing tussle |url=https://economictimes.indiatimes.com/industry/telecom/telecom-news/devas-multimedia-steps-up-the-offensive-against-india-a-timeline-of-ongoing-tussle/articleshow/88974462.cms |access-date=22 July 2022 |agency=The Economic Times |date=20 January 2022 |archive-date=22 July 2022 |archive-url=https://web.archive.org/web/20220722172031/https://economictimes.indiatimes.com/industry/telecom/telecom-news/devas-multimedia-steps-up-the-offensive-against-india-a-timeline-of-ongoing-tussle/articleshow/88974462.cms |url-status=live }}</ref>
In late 2009, some ISRO insiders exposed information about the Devas-Antrix deal,<ref name="Behind the S-band spectrum scandal" /><ref>{{cite web |url=http://newsroom24x7.com/2015/03/20/2862/antrix-devas-news-lalit-shastri/#main |title=antrix-devas-news-lalit-shastri |publisher=Newsroom24x7 |access-date=24 May 2016 |archive-url=https://web.archive.org/web/20150519214523/http://newsroom24x7.com/2015/03/20/2862/antrix-devas-news-lalit-shastri/#main |archive-date=19 May 2015 |url-status=live |date=20 March 2015}}</ref> and the ensuing investigations led to the deal's annulment. G. Madhavan Nair (ISRO Chairperson when the agreement was signed) was barred from holding any post under the Department of Space. Some<!-- Name was unrevealed. --> former scientists were found guilty of "acts of commission" or "acts of omission". Devas and Deutsche Telekom demanded US$2&nbsp;billion and US$1&nbsp;billion, respectively, in damages.<ref>{{cite web |url=http://www.newindianexpress.com/nation/Antrix-Devas-and-the-second-generation-scam/2013/08/22/article1745659.ece |title=Antrix Devas and the second generation scam |work=The New Indian Express |date=22 August 2013 |access-date=6 February 2015 |author=Jethmalani, Ram |location=New Delhi |archive-url=https://web.archive.org/web/20150206055725/http://www.newindianexpress.com/nation/Antrix-Devas-and-the-second-generation-scam/2013/08/22/article1745659.ece |archive-date=6 February 2015 |url-status=live}}</ref> The Department of Revenue and Ministry of Corporate Affairs began an inquiry into Devas shareholding.<ref name="ETDevdas" />

The Central Bureau of Investigation registered a case against the accused in the Antrix-Devas deal under Section 120-B, besides Section 420 of IPC and Section 13(2) read with 13(1)(d) of PC Act, 1988 in March 2015 against the then executive director of [[Company:Antrix Corporation|Antrix Corporation]], two officials of a USA-based company, a Bengaluru-based private multimedia company, and other unknown officials of the Antrix Corporation or the Department of Space.<ref>{{cite news |title=CBI registers case in the huge Antrix-Devas scam |url=http://newsroom24x7.com/2015/03/18/cbi-registers-case-in-the-huge-antrix-devas-scam/ |access-date=16 May 2015 |publisher=Newsroom24x7.com |archive-url=https://web.archive.org/web/20150518104746/http://newsroom24x7.com/2015/03/18/cbi-registers-case-in-the-huge-antrix-devas-scam/ |archive-date=18 May 2015 |url-status=live}}</ref><ref>{{cite web |url=http://newsroom24x7.com/2015/03/20/antrix-devas-agreement-national-security-and-cbi/ |title=Antrix-Devas Agreement, national security, and CBI |publisher=Newsroom24x7 |access-date=24 May 2016 |archive-url=https://web.archive.org/web/20160503054604/https://newsroom24x7.com/2015/03/20/antrix-devas-agreement-national-security-and-cbi/ |archive-date=3 May 2016 |url-status=live |date=20 March 2015}}</ref>

Devas Multimedia started [[Social:Arbitration|arbitration]] proceedings against Antrix in June 2011. In September 2015, the International Court of Arbitration of the International Chamber of Commerce ruled in favour of Devas, and directed Antrix to pay US$672&nbsp;million (Rs 44.35&nbsp;billion) in damages to Devas.<ref>{{cite news |url=http://economictimes.indiatimes.com/news/science/isros-antrix-to-pay-rs-4432-crore-damages-to-devas-for-unlawfully-cancelling-contract/articleshow/49158235.cms |title=ISRO's Antrix to pay Rs 44.32&nbsp;billion damages to Devas for unlawfully cancelling contract |date=30 September 2015 |work=The Economic Times |access-date=15 December 2015 |archive-url=https://web.archive.org/web/20151105072143/http://economictimes.indiatimes.com/news/science/isros-antrix-to-pay-rs-4432-crore-damages-to-devas-for-unlawfully-cancelling-contract/articleshow/49158235.cms |archive-date=5 November 2015 |url-status=live}}</ref> Antrix opposed the Devas plea for tribunal award in the Delhi High Court.<ref>{{cite news |url=http://indianexpress.com/article/india/india-news-india/antrix-opposes-devas-plea-over-tribunal-award-in-hc/ |title=Antrix opposes Devas plea over tribunal award in HC |last=Mathur |first=Aneesha |date=10 October 2015 |work=The Indian Express |access-date=23 January 2018 |location=[[Place:New Delhi|New Delhi]] |archive-url=https://web.archive.org/web/20151222153015/http://indianexpress.com/article/india/india-news-india/antrix-opposes-devas-plea-over-tribunal-award-in-hc/ |archive-date=22 December 2015 |url-status=live}}</ref>

== See also ==
* [[Earth:Deep Ocean mission|Deep Ocean mission]]
* [[Organization:Indian Institute of Space Science and Technology|Indian Institute of Space Science and Technology]]
* [[Astronomy:List of government space agencies|List of government space agencies]]
* [[Astronomy:List of ISRO missions|List of ISRO missions]]
* [[Company:NewSpace India Limited|NewSpace India Limited]]
* [[Astronomy:Indian National Space Promotion and Authorisation Centre|IN–SPACe]]
* Indian Space Association
* Science and technology in India
* [[Astronomy:Space industry of India|Space industry of India]]
* Swami Vivekananda Planetarium
* Telecommunications in India
* [[Astronomy:Timeline of Solar System exploration|Timeline of Solar System exploration]]

== Notes ==
{{Notelist}}

== References ==
{{reflist}}

== Bibliography ==
{{refbegin|40em}}
* {{Cite journal |last1=Bhaskarnarayana |first1=A. |last2=Bhatia |first2=B.S. |last3=Bandyopadhyay |first3=K. |last4=Jain |first4=P.K. |year=2007 |title=Applications of space communication |url=https://www.jstor.org/stable/24102068 |journal=Current Science |volume=93 |issue=12 |pages=1737–1746 |location=Bangalore |publisher=Indian Academy of Sciences |jstor=24102068 |access-date=17 March 2021 |archive-date=15 April 2021 |archive-url=https://web.archive.org/web/20210415013343/https://www.jstor.org/stable/24102068 |url-status=live}}
* {{Cite book |last=Burleson |first=D. |year=2005 |chapter=India |title=Space Programmes Outside the United States: All Exploration and Research Efforts, Country by Country |pages=136–146 |location=Jefferson, NC |publisher=McFarland |isbn=0-7864-1852-4}}
* {{Cite journal |last=Daniel |first=R.R. |year=1992 |title=Space Science in India |journal=Indian Journal of History of Science |volume=27 |issue=4 |location=New Delhi |pages=485–499 |publisher=Indian National Science Academy}}
* {{Cite journal |last1=Gupta |first1=S.C. |last2=Suresh |first2=B.N. |last3=Sivan |first3=K. |year=2007 |title=Evolution of Indian launch vehicle technologies |url=http://www.currentscience.ac.in/Downloads/article_id_093_12_1697_1714_0.pdf |pages=1697–1714 |journal=Current Science |volume=93 |issue=12 |location=Bangalore |publisher=Indian Academy of Sciences |access-date=17 March 2021 |archive-url=https://web.archive.org/web/20200806235710/https://www.currentscience.ac.in/Downloads/article_id_093_12_1697_1714_0.pdf |archive-date=6 August 2020 |url-status=live}}
* {{Cite book |last=Ojha |first=N.N. |chapter=India in Space |title=Science & Technology |publisher=Chronicle Books |pages=110–143 |location=New Delhi}}
* {{Cite book |last1=Mistry |first1=Dinshaw |last2=Wolpert |first2=Stanley |year=2006 |chapter=Space Programme |title=Encyclopedia of India |volume=4 |pages=93–95 |isbn=0-684-31353-7 |publisher=[[Company:Gale (publisher)|Thomson Gale]]}}
* {{Cite journal |last=Sen |first=Nirupa |year=2003 |title=Indian success stories in use of Space tools for social development |url= |journal=Current Science |volume=84 |issue=4 |pages=489–90 |location=Bangalore |publisher=Indian Academy of Sciences}}
* {{Cite book |last1=Suri |first1=R.K. |last2=Rajaram |first2=Kalpana |chapter=Space Research |title=Science and Technology in India |pages=411–448 |isbn=81-7930-294-6 |location=New Delhi |publisher=Spectrum}}
* {{citation |last=Aliberti |first=Marco |year=2018 |title=India in Space: Between Utility and Geopolitics |publisher=Springer |url=https://books.google.com/books?id=NYtHDwAAQBAJ&pg=PA12 |bibcode=2018isbu.book.....A |isbn=978-3-319-71652-7 |access-date=14 April 2019 |archive-date=8 May 2020 |archive-url=https://web.archive.org/web/20200508160347/https://books.google.com/books?id=NYtHDwAAQBAJ&pg=PA12 |url-status=live}}
* {{citation |last=D. Launius |first=Roger |year=2018 |title=The Smithsonian History of Space Exploration: From the Ancient World to the Extraterrestrial Future |url=https://books.google.com/books?id=4j9wDwAAQBAJ&pg=PA196 |publisher=Smithsonian Institution |isbn=978-1-58834-637-7 |access-date=14 April 2019 |archive-date=8 May 2020 |archive-url=https://web.archive.org/web/20200508160323/https://books.google.com/books?id=4j9wDwAAQBAJ&pg=PA196 |url-status=live}}
* {{citation |last1=Narayanan |first1=Nambi |last2=Ram |first2=Arun |title=Ready To Fire: How India and I Survived the ISRO Spy Case |url=https://books.google.com/books?id=Ks1SDwAAQBAJ&pg=PT59 |date=2018 |publisher=Bloomsbury Publishing |isbn=978-93-86826-27-5 |access-date=14 April 2019 |archive-date=8 May 2020 |archive-url=https://web.archive.org/web/20200508160324/https://books.google.com/books?id=Ks1SDwAAQBAJ&pg=PT59 |url-status=live}}
* {{cite book |last1=Harvey |first1=Brian |last2=Smid |first2=Henk H. F. |last3=Pirard |first3=Theo |title=Emerging Space Powers: The New Space Programmes of Asia, the Middle East and South-America |url=https://books.google.com/books?id=XD1ZaYbiWwMC&pg=PA144 |year=2011 |publisher=Springer Science & Business Media |isbn=978-1-4419-0874-2 |pages=144– |access-date=14 April 2019 |archive-date=12 October 2017 |archive-url=https://web.archive.org/web/20171012092733/https://books.google.com/books?id=XD1ZaYbiWwMC |url-status=live}}
* {{cite book |last1=Bhargava |first1=Pushpa M. |last2=Chakrabarti |first2=Chandana |title=The Saga of Indian Science Since Independence: In a Nutshell |url=https://books.google.com/books?id=g7crHmSeI5kC&pg=PA39 |year=2003 |publisher=Universities Press |isbn=978-81-7371-435-1 |pages=39– |access-date=15 November 2015 |archive-url=https://web.archive.org/web/20160513184438/https://books.google.com/books?id=g7crHmSeI5kC&pg=PA39 |archive-date=13 May 2016 |url-status=live}}
* {{cite book |last=Sadeh |first=Eligar |year=2013 |title=Space Strategy in the 21st Century: Theory and Policy |url=https://books.google.com/books?id=u4nXqDvgGrIC&pg=PA303 |publisher=Routledge |isbn=978-1-136-22623-6 |access-date=19 February 2021 |archive-url=https://web.archive.org/web/20160306161252/https://books.google.com/books?id=u4nXqDvgGrIC&pg=PA303 |archive-date=6 March 2016 |url-status=live}}
* {{cite book |last1=Rajagopalan |last2=Prasad |first1=Rajeshwari Pillai |first2=Narayan |title=Space India 2.0: Commerce, Policy, Security and Governance Perspectives |url=https://books.google.com/books?id=iwtNDwAAQBAJ&pg=PA72 |year=2017 |publisher=Observer Research Foundation |isbn=978-81-86818-28-2 |access-date=16 March 2021 |archive-date=13 April 2021 |archive-url=https://web.archive.org/web/20210413211431/https://books.google.com/books?id=iwtNDwAAQBAJ&pg=PA72 |url-status=live}}
{{refend}}

== Further reading ==
* ''The Economics of India's Space Programme'', by U. Sankar, Oxford University Press, New Delhi, 2007, {{ISBN|978-0-19-568345-5}}
* ''The Indian Space Programme'', by Gurbir Singh, Astrotalkuk Publications, {{ISBN|978-0956933737}}
* ''Reach For the Stars: The Evolution of India's Rocket Programme'', by Gopal Raj, {{ISBN|978-0670899500}}
* ''From Fishing Hamlet to Red Planet: India's Space Journey'', by ISRO, {{ISBN|978-9351776895}}
* ''Brief History of Rocketry in ISRO'', by P V Manoranjan Rao and P Radhakrishnan, {{ISBN|978-8173717642}}
* ''India's Rise as a Space Power'', by U R Rao, {{ISBN|978-9382993483}}

== External links ==
* {{cite web |url=http://www.dos.gov.in |title=Official website of the Department of Space of the Government of India |publisher=dos.gov.in}}

{{Clear}}
{{Indian space programme}}
{{Indian spacecraft}}
{{ISRO facilities}}
{{Public sector space agencies}}


[[Category:Space programme of India| ]]
[[Category:Space agencies]]

{{Sourceattribution|ISRO}}