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Current Affairs7 min readSep 12, 2026

Bharatiya Antariksh Station: India’s Space Station by 2035

Bharatiya Antariksh Station: India’s Space Station by 2035
7 min read · 1,292 words

Current Affairs explainer · 12 September 2026 · Science & Technology coverage of the Bharatiya Antariksh Station

The news in one line: PM Modi has reaffirmed that India will operate its own space station, the Bharatiya Antariksh Station (BAS), by 2035 — with the first module BAS-01 cleared for launch by 2028 — putting India on track to become only the second country, after China, to run a national station in this decade.

What exactly is the Bharatiya Antariksh Station?

The BAS is India’s planned modular orbital laboratory: roughly five modules totalling about 52 tonnes, orbiting ~400–450 km up, designed to host astronauts for 15–20 day missions conducting microgravity research. “Antariksh” is Sanskrit for space; the name echoes how ISRO localises its missions (Gaganyaan — “sky craft”). The station is the centrepiece of an extended Gaganyaan programme: the Union Cabinet (September 2024) approved ₹11,170 crore for BAS development, on top of the original ₹20,193-crore Gaganyaan human-spaceflight budget. The architecture is deliberately incremental — launch one module, prove docking and life support, then add modules — the same strategy China used to build Tiangong and the same one the ISS partners used across a decade.

Why does the 2028 first-module date matter?

Because hardware timelines are the honest test of space announcements. The Cabinet-approved plan includes eight precursor missions by December 2028, cumulating in BAS-01 launching on an LVM3 — India’s heaviest operational rocket, human-rated for Gaganyaan. Between now and then, ISRO must prove in sequence: the first module’s structural and avionics systems, automated docking and berthing (proven at scale by SpaDeX in January 2025, when two ISRO satellites docked in orbit, making India the fourth nation to do so), regenerative life-support subsystems, and rendezvous sensors. Each 2026–27 mission is a checkbox on the road to a habitable module. The 2035 target then covers assembly of the remaining modules on later flights, with the next-generation launch vehicle (NGLV) expected to carry the heavier elements.

What will astronauts actually do there?

Microgravity is a different physics laboratory. On the station’s agenda, mirating international experience but tuned to Indian priorities: protein-crystal and pharmaceutical research (drug molecules crystallise better without gravity-driven convection), alloy and semiconductor growth, cell and stem-cell biology, plant biology for space agriculture, Earth observation payloads, and technology demonstrations for deep-space life support. There is also the quiet economic case: as the International Space Station heads for deorbit around 2030–31, the world’s researchers will face a shortage of station access. A working BAS, priced below Western alternatives, could sell microgravity services to developing countries the way ISRO sells launch services — the Antriksh-model applied to orbiting laboratories.

How does the timeline compare globally?

China’s Tiangong — three modules, ~100 tonnes — has been continuously crewed since 2022 and will outlive the ISS. The ISS, a 16-country consortium led by NASA and Roscosmos, is funded through 2030 with commercial successors (Axiom Station, Orbital Reef) not yet flying. If India holds its dates, BAS becomes the second operational national station and the only one explicitly designed around Global South access. That framing — “a station for the Global South” — is already visible in Indian space diplomacy, just as South Asia Satellite was for communications.

What does the programme borrow from Gaganyaan?

Everything human-spaceflight. The human-rated LVM3, the crew module and escape system, the life-support and environmental-control systems, astronaut training at the Astronaut Training Facility in Bengaluru — all Gaganyaan assets extend directly into BAS. The four astronaut-designates (IAF test pilots selected in 2024) trained in Russia and one of them, Group Captain Shubhanshu Shukla, flew to the ISS on the Axiom-4 mission in June 2025 — India’s first human in orbit since Rakesh Sharma (1984) and a live rehearsal of station operations. This is why ISRO insists BAS is “Gaganyaan-extended”: no new human-rating programme, just a bigger house built on the same foundation.

What are the hard problems still to solve?

  • Regenerative life support: recycling water and air for multi-week missions — ISRO has flight-demonstrated elements, but continuous closed-loop operation is new territory.
  • Reliable heavy lift cadence: assembling five modules means a faultless run of LVM3/NGLV launches; one failure strands the schedule.
  • Space debris and station-keeping: a 400–450 km orbit means constant reboosts and collision-avoidance manoeuvres.
  • Funding continuity across political cycles: 2035 is three election cycles away; the programme’s protection lies in its industrial base — dozens of Indian suppliers already building Gaganyaan hardware.

Rapid facts for prelims

Announced: Independence Day 2018 (Gaganyaan) and 2019 (station vision); Cabinet approval for BAS: September 2024, ₹11,170 crore; BAS-01: by 2028 on LVM3; full station: by 2035, ~5 modules, ~52 t, orbit 400–450 km; crew: 3–4 members, 15–20 day missions. SpaDeX docking: January 2025 (fourth nation after USSR/Russia, USA, China). Gaganyaan budget: ₹20,193 crore (2018). First Indian in space: Rakesh Sharma, Soyuz T-11, 1984. First Indian on ISS: Shubhanshu Shukla, Axiom-4, June 2025. Tiangong: China’s station, crewed since 2022. ISS: 16-country consortium, first module 1998, deorbit planned ~2030–31. India’s 2035–40 space goals: BAS by 2035, Indian on the Moon by 2040.

Practice questions

  1. When is the first BAS module scheduled to launch, and on which vehicle?By 2028, on the LVM3.
  2. Which ISRO experiment demonstrated in-orbit docking, a key BAS precursor?SpaDeX, January 2025.
  3. How many modules and what total mass is BAS planned for?About five modules, ~52 tonnes, at 400–450 km orbit.
  4. Who was the first Indian aboard the ISS?Group Captain Shubhanshu Shukla, Axiom-4 mission, June 2025.
  5. Match: Tiangong : China :: BAS : ?India; and ISS : 16-country consortium led by NASA/Roscosmos.

The closing argument

The strategic sentence for Mains: BAS is India’s claim that human spaceflight is a utility, not a stunt. A country that operates a station owns a permanent seat in the small club that writes the rules for orbital science, and can offer access as diplomacy. The risks are schedule and money, not physics — every technology BAS needs has flown somewhere; ISRO’s task is flying them reliably, one after another, for a decade. Watch 2028: if BAS-01 launches on time, the 2035 station is engineering arithmetic. If it slips, watch whether the political commitment holds — that, not the rocket, is the programme’s real test.

Mains practice

  1. “A national space station is less about prestige and more about a seat at the table that writes orbital-science rules.” Critically examine India’s Bharatiya Antariksh Station programme. (GS-3)

Revision card

  • BAS: India’s space station; Cabinet-approved Sep 2024 (₹11,170 cr).
  • BAS-01: first module, by 2028, on LVM3; 8 precursor missions by Dec 2028.
  • Full station: by 2035; ~5 modules, ~52 t; crew of 3–4 for 15–20 days.
  • Precursors: Gaganyaan, SpaDeX (Jan 2025), Axiom-4 (Shukla, Jun 2025).
  • Context: ISS deorbit ~2030–31; Tiangong operational; Moon by 2040.

Sources

References & authoritative sources

Source: compiled from official notifications, standard textbooks and our own mock-test analytics; last reviewed September 2026.

Frequently asked questions

What is the Bharatiya Antariksh Station, in one line?

India’s planned modular space station — first module by 2028 on an LVM3, fully assembled by 2035 — for microgravity research and long-duration human missions in low Earth orbit.

Why does India want its own space station?

Permanent access to microgravity research, technology independence in human spaceflight, and the ability to offer station access to Global South partners as the ISS retires around 2030–31.

How should aspirants use this guide?

Read the explainer once, revise from the revision card, then attempt the practice questions — the same three-pass method our mentors use in class.

Quick revision

  • Regenerative life support: recycling water and air for multi-week missions — ISRO has flight-demonstrated elements, but continuous closed-loop operation is new territory.
  • Reliable heavy lift cadence: assembling five modules means a faultless run of LVM3/NGLV launches; one failure strands the schedule.
  • Space debris and station-keeping: a 400–450 km orbit means constant reboosts and collision-avoidance manoeuvres.
  • Funding continuity across political cycles: 2035 is three election cycles away; the programme’s protection lies in its industrial base — dozens of Indian suppliers already building…
  • When is the first BAS module scheduled to launch, and on which vehicle? — By 2028, on the LVM3.
  • Which ISRO experiment demonstrated in-orbit docking, a key BAS precursor? — SpaDeX, January 2025.
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