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India Strengthens Strategic Deterrence with Multiple Missile Tests

  • By Thetripurapost Desk, New Delhi
  • Dec 25, 2025
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India has significantly enhanced its strategic and defensive capabilities with a series of successful missile tests, reinforcing all three pillars of its nuclear and conventional deterrence framework.

The country successfully test-fired the 3,500-kilometre range K-4 submarine-launched ballistic missile from the nuclear-powered submarine INS Arighat in the Bay of Bengal. Defence sources said the trial was conducted off the coast of Visakhapatnam, marking a major milestone in India’s sea-based nuclear capability.

With this test, India has further consolidated its nuclear triad, enabling nuclear weapon delivery from land, air, and sea. The K-4 missile, capable of carrying a nuclear warhead weighing up to two tonnes, is designed specifically for launch from Arihant-class submarines. After being ejected from underwater, the missile breaches the sea surface before proceeding toward its target.

The ‘K’ series of missiles is named in honour of Dr APJ Abdul Kalam, the architect of India’s missile programme. Derived from the Agni series, the K-4 is regarded as a critical element of India’s credible minimum deterrence, ensuring assured retaliation and strategic stability.

In another major development, the Indian Army successfully test-fired the Akash Next Generation (Akash-NG) air defence missile on December 23 at the Integrated Test Range, Chandipur, Odisha. According to the DRDO, the system precisely intercepted aerial targets at varying ranges and altitudes, including low-flying threats near the border and high-altitude targets at extended distances.

Earlier, India also conducted a successful test of the Agni-Prime ballistic missile on September 24, using a rail-mounted, canisterised mobile launcher. The system allows rapid deployment across the country through specially designed trains, enhancing mobility, survivability, and operational flexibility.

Together, these tests underscore India’s growing technological maturity in missile systems and significantly bolster its strategic deterrence posture.