Thiruvananthapuram: The Vikram Sarabhai Space Centre (VSSC) — a key unit of the Indian Space Research Organisation (ISRO) — has taken a significant stride in India’s ambitious space exploration roadmap by issuing an Expression of Interest (EoI) calling on qualified Indian aerospace manufacturers to design and build the BAS-01 structural module for the upcoming Bharatiya Antariksh Station (BAS).
This marked initiative signals an important shift in ISRO’s strategy, aligning with India’s Atmanirbhar Bharat vision and promoting strong collaboration between public research bodies and the private aerospace sector.
Details of the EoI for the Development of BAS-01 Structural Module
On January 8, 2026, VSSC published a formal Expression of Interest inviting bids from Indian firms interested in the development and realisation of the BAS-01 module structure — the foundational unit of India’s first stand-alone space station.
According to the official government EoI document:
- Interested manufacturers from within India are eligible.
- Only Class I and Class II Local suppliers per the Make in India policy can participate.
- Foreign vendors are not permitted to bid.
- Bidders must demonstrate financial strength, relevant prior experience, tax compliances, and local content commitments.
The deadline for expressions of interest is March 8, 2026, after which VSSC will begin evaluating responses from India’s aerospace manufacturing community.
What is Bharatiya Antariksh Station
The Bharatiya Antariksh Station (BAS) is envisioned as India’s first indigenous space station, projected to orbit Earth at roughly 400–450 km altitude.
Official plans estimate:
- Bhartiya Antariksh Station Timeline: First module launched as early as 2028.
- Targeted full operational capability by 2035.
- A modular configuration comprising five interconnected segments, enabling sustained crewed missions and scientific research.
The BAS will enable long-duration human presence in space, microgravity experiments, material science research and technology demonstrations — traits essential for strengthening India’s position as a global space power.
The Significance of the BAS-01 Structural Module
The BAS-01 structural module is the cornerstone of the entire space station architecture.
It is expected to provide:
- The pressurised core habitat for future astronaut stay and operations.
- The primary docking station for crew vehicles like Gaganyaan.
- A load-bearing frame capable of withstanding launch stresses and the harsh orbital environment.
Engineering requirements are expected to include expertise in:
- Advanced materials such as aluminium-lithium alloys and carbon-fibre composites.
- Thermal resilience and radiation shielding systems tailored for space environments.
- Precision machining and welding suited for spacecraft assembly.
Importance of the VSSC EOI
By outsourcing critical aerospace components like BAS-01 to Indian industry partners, VSSC and ISRO aim to:
- Catalyse domestic high-technology manufacturing capabilities.
- Foster supply chain maturity for space-grade materials and engineering systems.
- Promote employment and skill development in advanced aerospace sectors across India.
- Support the broader national space economy expected to grow into a multi-billion-dollar sector by the early 2030s.
Potential participating firms include established heavy-industry leaders and emerging private players in India’s vibrant aerospace ecosystem.
Context Within India’s Space Vision
The BAS initiative is part of India’s broader Space Vision 2047 framework, which seeks to elevate the country’s space capabilities significantly by mid-century.
Milestones already achieved — such as the successful Chandrayaan lunar missions and the Gaganyaan human spaceflight program — have positioned ISRO to transition from satellite launches toward extended human presence in orbit.
Global Competitive Landscape
India’s space station effort is unfolding against a backdrop of evolving global ambitions:
- The International Space Station (ISS) is expected to retire by the early 2030s.
- China operates the Tiangong space station.
- Private sector initiatives — such as Axiom Space in the U.S. — plan commercial orbital habitats.
- BAS positions India as an independent sovereign space station operator with opportunities for scientific collaboration while safeguarding key technologies.
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