India’s K-4 submarine-launched ballistic missile (SLBM)

India’s Nuclear Triad Achieves Credibility: Strategic Forces Command Successfully Test-Launches Nuclear-Capable K-4 SLBM from INS Arighat, Rendering K-15 Obsolete in Deterrence

India has taken a significant step in strengthening its nuclear deterrence with the successful test launch of the K-4 submarine-launched ballistic missile (SLBM) on December 23, 2025. Multiple credible sources, including The Times of India, confirmed that the missile was...
India Long-Range Ballistic Missile From INS Arighat

India Successfully Test Fires Long-Range Ballistic Missile From INS Arighat; Strengthens Strategic Nuclear Deterrence

India has made a significant leap in its strategic defense capabilities with the successful test-launch of a K-4 submarine-launched ballistic missile (SLBM) from its second indigenously built nuclear-powered submarine, INS Arighat. This development signals the operationalization of India's sea leg...