Gaganyaan: The Road to India's First Astronauts

Gaganyaan (Sanskrit for "sky vehicle") is ISRO's human spaceflight programme: an Indian capsule on an Indian rocket carrying up to three astronauts to a 400 km orbit and back. Approved in 2018, it has been built test by test — re-entry capsules, abort tests, parachute drops — towards the uncrewed G1 flight, targeted for late 2026, and a crewed flight in 2027.

Every test and decision that got Gaganyaan to the launch pad — 28 moments, and the flights are still ahead.

28 milestones from 2007 to 2040: 12 successes, 0 failures, 1 partial successes and 15 other milestones.

2007–2014 · Learning to come home

Before ISRO could fly people it had to prove it could bring something back from orbit in one piece. Every satellite before 2007 was a one-way trip.

SRE-1 · First capsule back from orbit

10 Jan 2007 · PSLV · Success · First Indian re-entry

The 550 kg Space Capsule Recovery Experiment rode PSLV-C7 to orbit, circled Earth for 12 days, then fired its retro-rocket, survived re-entry behind a heat shield and splashed down in the Bay of Bengal on 22 January 2007, where it was recovered.

It was India's first test of the four things every crew capsule needs: a heat shield, a controlled de-orbit, parachutes and sea recovery.

PSLV story

Human spaceflight studied and authorised

2007–2009 · Milestone

ISRO began pre-project studies for a crewed orbital vehicle in 2007, and in February 2009 the government cleared the human spaceflight programme in principle — but without full funding. Work continued for a decade on critical technologies: the crew module shape, life support, the crew escape system and a human-rated launcher.

CARE · The crew module's first flight

18 Dec 2014 · LVM3 · Success · Gaganyaan capsule shape flies

The first, sub-orbital test flight of LVM3 (then GSLV Mk III) carried a 3.7-tonne Crew Module Atmospheric Re-entry Experiment. It separated at about 126 km, re-entered, deployed its parachutes and splashed down in the Bay of Bengal near the Andaman and Nicobar Islands about 20 minutes after liftoff, where the Coast Guard recovered it.

CARE proved the capsule's shape, heat shield and parachute sequence at real re-entry speeds — the design that became the Gaganyaan crew module.

LVM3 story

2018–2019 · Announced, approved, crew chosen

In 2018 the programme got a name, a deadline and a budget in the space of six months.

Pad Abort Test · Escape from the launch pad

5 Jul 2018 · Success

At Sriharikota, the crew escape system's motors fired from the ground and carried a 12.6-tonne simulated crew module to about 2.7 km in a flight lasting 259 seconds. It then came down on its parachutes into the sea about 2.9 km away.

It showed that a crew sitting on a rocket that fails on the pad could be pulled clear and land safely.

Gaganyaan announced on Independence Day

15 Aug 2018 · Milestone · Programme named

Prime Minister Narendra Modi announced from the Red Fort that an Indian would fly to space on an Indian spacecraft — Gaganyaan — by 2022, the 75th year of independence.

Cabinet approves ₹9,023 crore

28 Dec 2018 · Milestone

The Union Cabinet approved the Gaganyaan programme at about ₹9,023 crore: two uncrewed flights followed by a crewed flight of up to seven days for two to three astronauts.

Human Space Flight Centre set up

January 2019 · Milestone

ISRO created the Human Space Flight Centre (HSFC) in Bengaluru to run Gaganyaan — crew training, life support, the crew module and mission operations.

Indian Air Force test pilots selected

2019 · Milestone

The IAF's Institute of Aerospace Medicine in Bengaluru screened test pilots for the astronaut corps. Four were chosen. In June 2019 ISRO signed a contract with Russia's Glavkosmos to help with selection, medical checks and training.

2020–2022 · Training, a robot and a pandemic

The plan was an uncrewed flight in December 2020. COVID-19 stopped factories, tests and training, and the human-rating work turned out to be bigger than expected.

Vyommitra unveiled

22 Jan 2020 · Milestone

ISRO showed off Vyommitra, a half-humanoid robot — head, torso and arms — built to ride in the crew seat on uncrewed flights, operate panels and report on cabin conditions.

Astronaut training in Russia

Feb 2020 – Mar 2021 · Milestone

The four pilots trained at the Yuri Gagarin Cosmonaut Training Center near Moscow, where Rakesh Sharma trained in the 1980s. The course covered spacecraft systems, weightlessness flights, centrifuge runs and survival after landing in forest, marsh and water. COVID-19 paused it in 2020; it ended in March 2021.

Rakesh Sharma, 1984

Pandemic pushes the schedule back

2020–2021 · Delay

With work stopped across ISRO's centres and suppliers, the first uncrewed flight slipped from December 2020 to 2021 and then further. The 2022 crewed goal was dropped.

HS200 booster passes human-rating test

13 May 2022 · Success

ISRO fired the first human-rated S200 solid booster for its full duration at Sriharikota. Each of HLVM3's stages — the two HS200 boosters, the L110 core and the C32 cryogenic stage — had to be re-qualified with larger safety margins.

2023–2024 · Escape proven, crew revealed

The first Gaganyaan hardware to fly was not the spacecraft but its lifeboat: the crew escape system, tested at the moment of highest stress on the way up.

TV-D1 · Crew escape in flight

21 Oct 2023 · Success · First Gaganyaan flight

A new single-stage Test Vehicle carried a crew module and its escape system. The first attempt stopped on the pad five seconds before liftoff over an engine ignition issue; ISRO fixed it and launched at 10:00 am the same day. At about 12 km, just past the speed of sound, the escape system fired and pulled the crew module away; the module separated from it at about 17 km, deployed its parachutes and splashed down in the Bay of Bengal about 10 km off Sriharikota. The Indian Navy recovered it.

The whole flight took under ten minutes — and proved a crew could survive a rocket failure during ascent.

CE20 cryogenic engine human-rated

February 2024 · Success

The CE20 engine of the C32 upper stage completed its final human-rating ground tests, the last big propulsion qualification before the rocket for G1 could be stacked.

India's four astronauts named

27 Feb 2024 · Milestone · Crew revealed

At the Vikram Sarabhai Space Centre, Thiruvananthapuram, Prime Minister Modi named the astronaut-designates: Group Captains Prasanth Balakrishnan Nair, Ajit Krishnan, Angad Pratap and Wing Commander (now Group Captain) Shubhanshu Shukla, and pinned on their astronaut wings.

Budget raised to ₹20,193 crore; BAS-1 approved

18 Sep 2024 · Milestone

The Cabinet expanded Gaganyaan to include the first module of the Bharatiya Antariksh Station (BAS-1) and an extra uncrewed flight, adding ₹11,170 crore for a total of ₹20,193 crore. Eight missions are planned through BAS-1 in 2028. The government's longer goals: an operational Indian space station by 2035 and an Indian on the Moon by 2040.

2025 · An Indian astronaut in orbit

While the Gaganyaan capsule was being built, one of its astronauts went to orbit another way — and came back with experience no Indian had gained since 1984.

G1 crew module propulsion integrated

21 Jan 2025 · Success

ISRO's Liquid Propulsion Systems Centre integrated the propulsion system into the G1 crew module and shipped it to the Vikram Sarabhai Space Centre for avionics and wiring.

Shubhanshu Shukla flies to the ISS (Axiom-4)

25 Jun – 15 Jul 2025 · Falcon 9 · Success · First Indian on the ISS

Shukla flew as pilot of the commercial Axiom-4 mission on a SpaceX Crew Dragon, docking with the ISS on 26 June and splashing down off California on 15 July. He was the second Indian in space, 41 years after Rakesh Sharma, and the first aboard the International Space Station. Prasanth Nair trained as his backup.

ISRO paid for the seat to give Gaganyaan's team real operational experience — launch, life on a station, experiments, re-entry and recovery.

Track the ISS live

IADT-01 · First integrated parachute drop

24 Aug 2025 · Success

An IAF Chinook lifted a simulated crew module and released it over the sea off Sriharikota. All ten parachutes — two apex-cover, two drogue, three pilot and three main — deployed in sequence, and the module splashed down for recovery. ISRO, the IAF, DRDO, the Navy and the Coast Guard ran it together.

2026 · Getting G1 ready

2026 is the year of final checks: every system that has to work on the first orbital flight, qualified one more time on the ground or in the air.

IADT-02 · Second air-drop test

10 Apr 2026 · Success

A 5.7-tonne simulated crew module was dropped from about 3 km by an IAF Chinook off Sriharikota. Ten parachutes of four types deployed and the Indian Navy recovered the module.

Vyommitra goes into the G1 capsule

28 Apr 2026 · Milestone

Integration of the Vyommitra robot into the G1 crew module began. Alongside it G1 carries an engineering model of the life-support system and a fruit-fly biology experiment.

IMAT · Main parachutes qualified

7 Jul 2026 · Success

The Integrated Main Parachute Air Drop Test at the ADRDE drop zone in Sheopur, Madhya Pradesh, released a dummy mass from about 2.5 km to qualify the main parachutes for G1. In the same month ISRO completed up-righting-system, umbilical-separation and apex-cover separation tests and a ground firing of the SOLVE test-vehicle motor.

Crew module–service module separation tests

October 2026 · Success

ISRO completed separation tests of the G1 orbital module, validating the sequence by which the crew module leaves the service module before re-entry.

Latest G1 status

2026–2040 · The flights ahead

These are official targets, not dates. Each flight goes only when the one before it says it is safe.

G1 · First uncrewed orbital flight

Q4 2026 · target · HLVM3 · Planned

HLVM3 puts the orbital module, with Vyommitra aboard, into a roughly 170 × 408 km orbit. The spacecraft circularises its orbit, tests life support, then fires to de-orbit; the crew module re-enters, deploys ten parachutes and splashes down for Navy recovery.

G1 launch date & status

G2 and G3 · More uncrewed flights

2027 · target · HLVM3 · Planned

Two more uncrewed flights repeat and extend G1's tests before the crew is cleared to fly.

H1 · India's first crewed flight

2027 · target · HLVM3 · Planned · India's first astronauts

Up to three Indian astronauts in a roughly 400 km orbit for up to three days, then a splashdown in Indian waters — making India the fourth country to fly humans on its own rocket.

BAS-1 · First space station module

2028 · target · Planned

The first module of the Bharatiya Antariksh Station, approved in 2024, is targeted for launch by 2028.

A space station by 2035, the Moon by 2040

2035 & 2040 · goals · Goal

The government's stated goals: a fully operational Bharatiya Antariksh Station by 2035 and an Indian astronaut on the Moon by 2040. Gaganyaan is the first step to both.

Key facts for exams

  • Gaganyaan — India's first human spaceflight programme, run by ISRO's Human Space Flight Centre (HSFC), Bengaluru.
  • Announced 15 August 2018; Cabinet approval 28 December 2018 (about ₹9,023 crore).
  • Revised budget ₹20,193 crore (Cabinet, 18 September 2024), adding BAS-1 and an extra uncrewed flight; eight missions through 2028.
  • Crewed mission goal: up to 3 astronauts, ~400 km low Earth orbit, up to 3 days, sea splashdown.
  • Launch vehicle: HLVM3 (human-rated LVM3) — HS200 boosters, L110 core, C32 cryogenic stage, Crew Escape System.
  • Precursors: SRE-1 (2007), CARE (18 Dec 2014), Pad Abort Test (5 Jul 2018), TV-D1 (21 Oct 2023), IADT-01 (24 Aug 2025).
  • Astronauts (named 27 Feb 2024): Prasanth B. Nair, Ajit Krishnan, Angad Pratap, Shubhanshu Shukla — all IAF test pilots.
  • Shubhanshu Shukla: first Indian on the ISS (Axiom-4, 25 Jun – 15 Jul 2025); second Indian in space after Rakesh Sharma (1984).
  • Vyommitra — ISRO's half-humanoid robot for the uncrewed flights (unveiled January 2020).
  • Sequence: G1, G2, G3 (uncrewed) → H1 (crewed). Targets: G1 Q4 2026, H1 2027.
  • India would be the 4th nation to independently launch humans, after USSR/Russia, USA and China.
  • Long-term: Bharatiya Antariksh Station by 2035; Indian on the Moon by 2040.

Words used on this page

Crew escape system
Small, powerful rockets on top of a crew capsule that can pull it away from a failing launcher within seconds, then let it parachute down.
Cryogenic engine
An engine that burns liquid hydrogen (at about −253 °C) and liquid oxygen (about −183 °C). It gets more push per kilogram than other fuels, which upper stages need for heavy satellites — but it is one of the hardest rocket technologies to build.
Docking
Two spacecraft meeting in orbit and locking together. It is needed to build space stations, refuel spacecraft and bring samples back from the Moon.
HLVM3 (human-rated LVM3)
The version of ISRO's LVM3 rocket made safe enough to carry people, with extra safety margins, health monitoring and a crew escape system. It will launch Gaganyaan.
Re-entry
Coming back into Earth's atmosphere from space. Friction heats the object to thousands of degrees, so anything meant to survive needs a heat shield.
Rocket stage
A section of a rocket with its own engine and fuel. When its fuel runs out it drops away, so the rest of the rocket is lighter and can go faster. PSLV has four stages.
Vyommitra
A half-humanoid robot built by ISRO to fly in the crew seat on Gaganyaan's uncrewed test flights. It operates panels and reports cabin conditions so the life-support systems are proven before astronauts fly.

Frequently asked questions

What is the Gaganyaan mission?

Gaganyaan is ISRO's human spaceflight programme. It aims to send up to three Indian astronauts to a roughly 400 km orbit for up to three days on an Indian rocket and spacecraft, and return them safely to a splashdown in Indian waters.

What does Gaganyaan mean?

Gaganyaan is Sanskrit for "sky vehicle" or "sky craft" — from gagan (sky) and yaan (vehicle).

What is the cost of the Gaganyaan mission?

The Cabinet approved about ₹9,023 crore in December 2018. In September 2024 it raised the total to ₹20,193 crore to add the first module of the Bharatiya Antariksh Station and an additional uncrewed flight.

Who are the four astronauts of Gaganyaan?

Group Captains Prasanth Balakrishnan Nair, Ajit Krishnan, Angad Pratap and Shubhanshu Shukla, all Indian Air Force test pilots, named on 27 February 2024 at VSSC, Thiruvananthapuram.

What was TV-D1?

Test Vehicle Demonstration-1, flown on 21 October 2023 from Sriharikota. It fired Gaganyaan's crew escape system during ascent, pulling a crew module clear of the rocket; the module parachuted into the Bay of Bengal and was recovered by the Navy. It was the first Gaganyaan flight test.

What is the Integrated Air Drop Test (IADT)?

A test in which a helicopter drops a simulated crew module so its full parachute sequence — ten parachutes of four types — can be checked in real conditions. IADT-01 was on 24 August 2025 and IADT-02 on 10 April 2026, both off Sriharikota.

Is Shubhanshu Shukla part of Gaganyaan?

Yes. He is one of the four Gaganyaan astronaut-designates. In 2025 he flew to the ISS on the Axiom-4 mission — a seat ISRO bought to give the Gaganyaan team operational experience.

Who was the first Indian in space?

Rakesh Sharma, who flew on the Soviet Soyuz T-11 on 3 April 1984 and spent about eight days on the Salyut 7 station. Gaganyaan will be the first time Indians fly on an Indian spacecraft.

What is the Bharatiya Antariksh Station?

India's planned space station. Its first module, BAS-1, was approved in September 2024 as part of the expanded Gaganyaan programme and is targeted for 2028, with the full station operational by 2035.

Related: Gaganyaan Tracker, LVM3, ISS Tracker, ISRO Missions Timeline, Chandrayaan-1, Mangalyaan.