ISRO: How India Built One of the World's Most Cost-Effective Space Programs

India's space agency operates with a budget under $2 billion a year — about one-twelfth of NASA's. With it, ISRO has reached Mars on a first try (Mangalyaan, 2014), landed near the lunar south pole (Chandrayaan-3, 2023), launched a Sun observatory (Aditya-L1), and is preparing for India's first crewed flight (Gaganyaan).

Three launch vehicles

• PSLV — Polar Satellite Launch Vehicle — the workhorse, with 60+ launches and a global commercial footprint via NSIL.
• GSLV Mk II — geosynchronous launches with an Indian cryogenic stage.
• LVM3 — formerly GSLV Mk III — heavy lift for Chandrayaan, Gaganyaan, and OneWeb commercial launches.

Chandrayaan-3 and the south pole

Chandrayaan-3's Vikram lander touched down near the lunar south pole on August 23, 2023, making India the fourth country ever to land on the Moon — and the first to land in the polar region. The Pragyan rover operated until lunar night. The mission cost roughly $75 million.

Founded

1969

HQ

Bengaluru, India

Active employees

~17,000

Launch sites

Satish Dhawan Space Centre (Sriharikota)

First Mars mission

Mangalyaan, 2014 — first to reach Mars on the first try

First lunar landing

Chandrayaan-3, August 23, 2023

Gaganyaan: India's human spaceflight program

Gaganyaan will carry up to three Indian astronauts (gaganyatris) to low Earth orbit. The mission profile uses an LVM3 rocket and a 3.7-ton crew module with an integrated launch escape system. Crewed flight is targeted for the late 2020s, after a series of test flights and uncrewed missions.

India's private space sector

Following 2020 reforms that opened the sector, Indian startups are flying. Skyroot Aerospace launched Vikram-S, India's first private rocket, in 2022. Agnikul Cosmos completed a sub-orbital flight of its 3D-printed Agnibaan rocket in 2024. Pixxel and Bellatrix are building hyperspectral satellite constellations and propulsion systems respectively.