Indo-Pacific — 2026-04-29

India Races to Boost Nuclear and Conventional Submarine Fleet Amid Chinese Ocean Expansion

India inducted INS Aridhaman, its third nuclear ballistic missile submarine, enabling round-the-clock sea-based nuclear deterrent patrols for the first time. India is also finalizing an $8 billion deal with Germany for six AIP stealth submarines. China operates a fleet of over sixty submarines and is expanding nuclear submarine production.

Analysis
INS Aridhaman's induction delivers India's first continuous-at-sea nuclear deterrent, an operational threshold China's numerical advantage had previously denied New Delhi. The approximately $8 billion German AIP submarine contract, per a single Defense News report with no MoD confirmation, is unlikely to close within the next 12 months. Scorpene delays, P-75I's sixteen-year path to vendor selection, and unresolved technology-transfer terms all weigh against it. The announcement may instead be timed to extract leverage against France and domestic shipbuilders rather than reflecting genuine near-term procurement intent. Beijing will read Aridhaman's commissioning as confirmation that its fleet expansion is accelerating Indian nuclear modernization rather than deterring it.

1 sources

India races to boost conventional, nuclear submarine combat punch - Defense News