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Opinion | INS Aridaman: India’s Nuclear Deterrence Comes Of Age

27 0
03.04.2026

Opinion | INS Aridaman: India’s Nuclear Deterrence Comes Of Age

No foreign blueprints. No borrowed reactor. No licensed hull. India built its third nuclear-powered submarine from scratch.

Three nuclear-powered ballistic missile submarines in the active fleet is not a number India arrived at easily or quickly. It is the product of three decades of sustained scientific investment, and it marks the point at which India crosses from a state that possesses a nuclear triad in principle to one that can sustain it in practice.

The distinction matters more than it might appear. A single hull proves a concept. Two hulls suggest a programme. Three hulls represent a fleet, with the rotation depth, maintenance margins and operational flexibility that serious continuous deterrence requires. That this fleet was designed, engineered and built within India, without a foreign prime contractor and without publicly acknowledged technology transfer, places the programme in a category occupied by very few states. The platform’s sovereign character is not peripheral. It is central to understanding what Aridaman’s induction actually signals, both regionally and globally.

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To appreciate what Aridaman represents, the fundamentals of the Submarine Submerged Ballistic Nuclear (SSBN) strategy are worth stating plainly. A nuclear-powered ballistic missile submarine is the sea-based leg of the nuclear triad, and among the three legs — land, air and sea — it is the........

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