India Conducts Secret Test of K‑4 Ballistic Missile from Nuclear Submarine in Bay of Bengal
New Delhi: India has successfully conducted a secret test of its powerful K‑4 intermediate-range ballistic missile from the nuclear-powered submarine INS Arighat in the Bay of Bengal, significantly strengthening the sea-based leg of its nuclear deterrence.
The solid-fuel, two-stage K‑4 ballistic missile, capable of striking targets at a distance of up to 3,500 kilometres, was launched from the 6,000‑tonne INS Arighat, India’s second indigenously built nuclear-powered ballistic missile submarine (SSBN). No official statement has been issued by the Ministry of Defence so far.
According to defence sources, the K‑4 missile can carry a two‑tonne nuclear payload and is a crucial component of India’s nuclear triad, which consists of land-based missiles, air-delivered nuclear weapons, and se...









