Space technology

Story hook

It is 21 November 1963. A Catholic church on a strip of palm-fringed coast at Thumba near Thiruvananthapuram is being used as a workshop. Inside the nave, two engineers are bolting together the fins of a tiny Nike-Apache sounding rocket donated by NASA. Outside, the bishop's house has been converted into the launch control room. A parish priest has agreed to lend the church to a young physicist named Vikram Sarabhai because the geomagnetic equator runs almost exactly over the parish — the best location on Earth for atmospheric studies. The rocket flies that evening. India's space programme is born.

Sixty-three years later — on the morning of 14 July 2023 — a Launch Vehicle Mark-3 (LVM3-M4) weighing 642 tonnes and standing 43.5 metres tall lifts off from the Satish Dhawan Space Centre at Sriharikota. It carries Chandrayaan-3 to a translunar trajectory. Forty days later, India becomes the fourth country to soft-land on the Moon.

The arc between those two events — the bicycle-borne rocket fins of 1963 and the cryogenic-stage heavy-lift launcher of 2023 — is the story of the Indian Space Research Organisation (ISRO). It is also the story of how a country with a per-capita income of $2,800 came to operate the most cost-efficient orbital launch programme on the planet.

Why this matters for UPSC

Launch vehicles + ISRO history have been asked in every Prelims since 2013 — often as "which mission used which vehicle" matching pairs, or "year of first flight" framings. Mains GS-III tests the strategic + economic dimensions (indigenisation, soft power, civil- military synergy). Interview boards probe budget defence arguments and the Sarabhai doctrine.