ISRO and India's launch vehicles

The Indian Space Research Organisation, ISRO, was formed in 1969, building on the space research work led by Vikram Sarabhai. Its early purpose was practical: use space technology for communication, weather forecasting, resource mapping and education in a developing country, rather than pursuing prestige missions alone. That applications-first philosophy has shaped the programme ever since, even as it has taken on planetary exploration.

India's first satellite, Aryabhata, was launched in 1975, and the Satellite Launch Vehicle-3 put a satellite into orbit from Indian soil in 1980, giving India an independent launch capability. The Polar Satellite Launch Vehicle, whose first successful flight came in 1994, became the workhorse of the programme, launching remote sensing and scientific satellites and earning a reputation for reliability, including a record number of satellites on a single flight. The Geosynchronous Satellite Launch Vehicle and its more powerful successor, the Launch Vehicle Mark-3, added the ability to place heavier communication satellites into geostationary orbit.

Launch vehicles are judged on reliability, cost and payload. ISRO's reputation rests on achieving reliable launches at comparatively low cost, partly by keeping teams and facilities in-house and by reusing designs across missions. Reusability, the ability to recover and refly parts of a rocket, is the next frontier, and ISRO has been testing reusable launch vehicle technology, because the cost of throwing away a rocket on every flight is the main barrier to cheaper access to space.

India's launch capacity also has a commercial dimension. Through its commercial arm, NewSpace India Limited, India launches satellites for foreign customers, earning revenue and building credibility. Commercial launches, however, compete in a market where private firms abroad now offer frequent, reusable rockets, so cost and launch frequency matter as much as technical success.

For civil studies, the launch programme illustrates how a public agency can build capability over decades: start with applications that serve development, master each step of the technology, and only then attempt harder missions. It also shows the limits of that model, as private competition and the need for faster, cheaper launches push the sector towards the reforms covered in the private space note.