Examine how indigenous shipbuilding capability strengthens India's strategic and scientific presence in the Indian Ocean Region.

The launch of ORV Sagar Manthan — an 89.5 m, ~5,900 tonne ocean research vessel built by Garden Reach Shipbuilders & Engineers (GRSE), Kolkata, and billed as the largest research vessel built in an Indian shipyard [1] — marks a shift from chartered or foreign-built platforms to domestically constructed ones. Indigenous shipbuilding today underwrites both India's scientific reach and its strategic weight in the Indian Ocean Region (IOR).

Scientific presence

• Autonomous survey capability: onboard multibeam bathymetry, seismic geophysical survey systems and CTD profiling allow deep-sea sampling to 6,000 m without hiring foreign vessels [1].
• Mission enablement: such vessels service the Deep Ocean Mission (MoES, approved 2021), whose mandate spans deep-sea mineral exploration and ocean technology [3].
• Continuity of research: a domestically built fleet ensures assured sea-time for NCPOR, which contracted GRSE for the vessel [2], and is extending to India's first Polar Research Vessel through the GRSE–Kongsberg design tie-up [5].

Strategic presence

• Reduced external dependence: mapping the EEZ and the Central Indian Ocean Basin — where India holds ISA-linked exploration rights over polymetallic nodules [4] — no longer requires foreign hulls or crews, protecting sensitive seabed data.
• Blue Economy and energy security: indigenous survey platforms complement offshore initiatives such as the 'Samudra Manthan' National Offshore Exploration Scheme (₹84,084 crore) [6].
• Industrial and defence spin-offs: a yard building warships, survey vessels and research ships deepens the design-and-build ecosystem central to Atmanirbhar Bharat.

Limitations persist — high import content in propulsion, sensors and navigation systems, long build cycles, and a thin pool of specialised marine designers.

Indigenous shipbuilding thus converts scientific ambition into sustained maritime capability: hulls built at home translate into data, minerals and presence owned at home. Deepening component-level indigenisation, expanding trained crew and survey scientists, and pairing exploration with environmental safeguards for the deep seabed will let platforms like Sagar Manthan anchor India's role as a credible net provider of ocean knowledge in the IOR.