Examine the role of public sector shipyards in achieving Aatmanirbhar Bharat in defence manufacturing, with reference to recent naval vessel deliveries.

Defence Public Sector Undertaking shipyards are the primary instrument through which India converts the Aatmanirbhar Bharat vision into floating capability. The delivery of the Diving Support Vessel ‘Nipun’ by Hindustan Shipyard Limited (HSL) to the Navy on 30 July 2026 illustrates both their strengths and their limits [1].

Design-to-delivery capability

• PSU yards now handle the full cycle — Nistar and Nipun were designed and built at HSL, launched together in September 2022 [2], with Nistar delivered in July 2025 [3] and Nipun in 2026 [1].
• Warships are built to Indian Register of Shipping rules, embedding indigenous classification standards rather than foreign ones [1].

Absorption of high-end technology

• These vessels carry Deep Sea Saturation Diving systems, Remotely Operated Vehicles and Deep Submergence Rescue Vessel support [1][2], enabling salvage to 300 metres — a capability only select navies possess [4].

Ecosystem and employment multiplier

• Indigenous content of roughly 75–80 percent [1][2], with 120 MSMEs participating in Nistar's construction [4], spreads capability across private ancillaries and sustains skilled shipbuilding jobs.

Strategic dividend

• Indigenous submarine-rescue assets reduce dependence on foreign support in emergencies and position India as a "Preferred Submarine Rescue Partner" in the Indian Ocean Region [4].

Persisting constraints

• Long gestation — nearly four years from launch to delivery of the second vessel [2][1] — reflects capacity and supply-chain bottlenecks.
• Critical propulsion, sensor and weapon sub-systems remain partly imported, so indigenous content is not yet indigenous self-sufficiency.

Public sector yards have thus moved from assemblers to designers, making indigenisation credible rather than aspirational. Sustaining this requires steady order books, faster build cycles, deeper DPSU–private–MSME partnerships and targeted investment in critical sub-systems under the Defence Production and Export Promotion Policy. Deliveries like Nipun show that self-reliance in defence is best achieved not by import substitution alone, but by building an ecosystem where national capability, security and industrial growth reinforce one another.