Indian Space Research Organisation

 The Indian Space Research Organisation (ISRO) is India's national space agency, headquartered in Bengaluru. Founded in 1969 under the physicist Vikram Sarabhai, it was built on an unusual premise as newly independent country: that space technology should serve ordinary citizens — through weather forecasts, crop mapping, telemedicine, and rural education — rather than merely chase prestige^[1]. Five decades later, that frugal philosophy has made ISRO one of the world's most respected space agencies, famous for achieving firsts at a fraction of what others spend.

Origins

India's space story began before ISRO existed. The Indian National Committee for Space Research (INCOSPAR) was set up in 1962, and a decommissioned trawler carrying rocket fuel reached Thumba fishing village near Thiruvananthapuram in 1963 — chosen because its magnetic equatorial position suited upper-atmosphere research. Villagers helped carry rocket parts on bullock carts from the beach. ISRO formally succeeded INCOSPAR on 15 August 1969, with Sarabhai articulating a vision that space must "have an impact on the lives of common people."^[2]

Aryabhata, India's first satellite, was launched in 1975 aboard a Soviet rocket. Named after the ancient mathematician, it was built entirely by Indian engineers. The next breakthrough came from the Polar Satellite Launch Vehicle (PSLV), which gave India independent access to orbit and eventually became the agency's "trusted workhorse," flying more than 60 missions^[3].

Mangalyaan: Mars on a shoestring

In November 2013, a PSLV lifted off from Sriharikota carrying the Mars Orbiter Mission, nicknamed Mangalyaan. Four months later it slipped into Martian orbit, making India the first country in history to reach Mars on its very first attempt — and the first Asian nation to do so at all. The entire mission cost roughly $74 million, less than the production budget of many Hollywood films, a fact that became shorthand for India's engineering efficiency^[4]. The spacecraft far outlived its planned six-month mission, transmitting data about the Martian atmosphere for years.

Chandrayaan-3 and the lunar south pole

ISRO's first Moon mission, Chandrayaan-1 (2008), carried an instrument that helped confirm the presence of water molecules on the lunar surface. Its successor, Chandrayaan-2, ended in heartbreak in 2019 when the Vikram lander lost contact moments before touchdown. The agency rebuilt the mission with modified software and hardware, and on 14 July 2023 launched Chandrayaan-3. On 23 August, the Vikram lander touched down gently near the lunar south pole, making India the fourth country to achieve a soft landing on the Moon and the first ever to reach that region. The Pragyan rover confirmed sulphur in the soil and measured the lunar surface's temperature profile^[5].

Weeks later, on 2 September 2023, ISRO launched Aditya-L1, India's first dedicated solar observatory, placing it in a halo orbit around the Sun–Earth L1 point, 1.5 million kilometres away. Its SUIT telescope later captured the first-ever image of a solar flare "kernel" in the lower solar atmosphere — a genuine scientific first^[6].

Rockets and records

ISRO crossed its 100th launch milestone having started with the rudimentary SLV in 1979. Of those launches, the PSLV accounted for 62, followed by the cryogenic GSLV with 17, the heavy-lift LVM3 with 7, and the small-satellite SSLV^[7]. In February 2017, a single PSLV-C37 flight deployed 104 satellites at once, a world record that announced India as a serious commercial launch provider. The agency also operates NavIC, its own regional navigation constellation, and a vast fleet of INSAT communication and Resourcesat remote-sensing satellites used daily across South Asia.

Gaganyaan and what comes next

The current flagship programme is Gaganyaan, which will put Indian astronauts into low Earth orbit and make India only the fourth nation to launch humans to space independently. Test vehicles and an uncrewed demonstration have been flown as the programme progresses toward its crewed flights^[8]. Beyond that lie Chandrayaan-4, a lunar sample-return attempt, and the Bharatiya Antariksha Station, India's own space station targeted for the 2030s, along with an Indian astronaut on the Moon by 2040.

Commercialisation is reshaping the ecosystem too. The Indian National Space Promotion and Authorisation Centre (IN-SPACe) now regulates private players, and companies like Skyroot and Agnikul have begun launching privately built rockets. ISRO's trajectory — from bullock carts at Thumba to a global top-tier space power — remains one of the most remarkable institutional stories of post-independence India.