India’s Space Station Mission: Why 2035 Is the Target
India is working toward a major milestone in human spaceflight: establishing the Bharatiya Antariksh Station (BAS) by 2035. The planned station is designed as a five-module orbital facility that would support long-duration human missions, microgravity research and advanced space operations.
The 2035 target is not simply a single launch deadline. It is the end point of a sequence of missions and technologies that India is developing through the Gaganyaan programme and its wider Space Vision 2047.
The First Module Is Targeted for 2028
The station is planned to be assembled in stages.
The government approved development and launch of the first module, BAS-01, by 2028. The complete station, comprising five modules, is targeted for operationalisation by 2035.
As of July 2026, ISRO had completed the baseline design review and system engineering work for BAS-01, while subsystem design and technology development were progressing.
Why Does It Take Until 2035?
A space station is considerably more complicated than putting a single spacecraft into orbit.
India needs to develop and demonstrate technologies for rendezvous and docking, advanced life-support systems, crew habitation, robotics, in-orbit refuelling and microgravity experiments. These capabilities are specifically identified in the government's BAS plans.
The station also needs reliable transportation systems capable of repeatedly carrying people and equipment to low Earth orbit.
Gaganyaan Is the Foundation
The Gaganyaan programme is an important stepping stone.
India's first crewed Gaganyaan mission is targeted for 2027, while the first uncrewed experimental mission carrying Vyommitra is targeted for the fourth quarter of 2026. The programme is developing human-rated launch vehicles, crew systems, recovery operations and other technologies required for human spaceflight.
These capabilities can then contribute to India's longer-term objective of maintaining humans in orbit for longer periods.
Docking Technology Is Critical
A modular station requires spacecraft to connect safely with one another in orbit.
India's SpaDeX programme and planned follow-on missions are intended to advance orbital docking capabilities that can support future missions including Gaganyaan, Chandrayaan-4 and BAS.
Government documents identify docking, crew transfer, sample transfer and the transfer of power, fluids and propellant as capabilities relevant to these future missions.
The Station Will Be a Research Laboratory
The BAS is not being planned simply as a place for astronauts to live.
The government says the station will provide a platform for microgravity research and technology demonstrations, including work in life sciences and medicine.
ISRO has already invited Indian researchers to propose microgravity experiments through its IMEx-2026 programme. Selected experiments could eventually receive opportunities to fly in low Earth orbit, including aboard the Bharatiya Antariksh Station.
Potential research areas include life sciences, pharmaceuticals, materials science and manufacturing technologies.
2035 Fits Into a Larger Space Roadmap
The station is one part of India's longer-term Space Vision 2047.
The roadmap currently includes:
- 2026: First uncrewed Gaganyaan experimental mission targeted
- 2027: First crewed Gaganyaan mission targeted
- 2028: BAS-01 first module targeted
- 2032: Development target for the Next Generation Launch Vehicle
- 2035: Bharatiya Antariksh Station targeted for full establishment
- 2040: Indian crewed lunar mission targeted
ISRO's 2025–26 annual report identifies the 2035 station and 2040 crewed lunar mission as major milestones of Space Vision 2047.
Why 2035 Is the Target
The timeline reflects the need to build the capability in stages rather than attempting a fully operational station immediately.
India first needs experience with human spaceflight, life-support systems, docking, orbital operations and microgravity research. The 2028 BAS-01 target provides an earlier building block, while the following years allow additional modules and supporting technologies to be developed and integrated.
The government currently describes the BAS as a five-module station targeted for operationalisation by 2035.
Why It Matters
A sustained Indian presence in low Earth orbit could give Indian researchers regular access to microgravity and provide experience needed for more ambitious human missions beyond Earth.
It could also help develop technologies for India's planned lunar programme. ISRO describes the BAS as part of a progression toward sustained human presence in space and longer-term human exploration beyond low Earth orbit.
What Happens Next
The immediate milestones are the remaining Gaganyaan tests, the first uncrewed mission targeted for late 2026, the crewed mission targeted for 2027 and development of BAS-01 for launch by 2028.
The subsequent challenge will be integrating additional modules and the systems needed to make the five-module station operational by 2035.
TVR Perspective
The 2035 target represents a multi-stage human-spaceflight programme, rather than a single space-station launch. Gaganyaan, docking technology, life-support systems, microgravity research and new launch capabilities are being developed as interconnected pieces of the roadmap. Whether each milestone stays on schedule will depend on the progress of these technologies and missions over the coming years.
Sources & Verification
The timeline and technical objectives were checked against current ISRO and Government of India documents, including the 2026 ISRO Annual Report and Department of Space parliamentary updates.
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