Deep beneath the waters of the Bay of Bengal, something extraordinary just happened. India has successfully tested the K-4 submarine-launched ballistic missile, a weapon that can travel an astonishing 3,500 kilometers. And it was fired from none other than INS Arighaat, India’s third nuclear-powered ballistic missile submarine. But this is more than just a missile launch—it’s a story of strategy, stealth, and scientific excellence.

INS Arighaat was commissioned last year and is a key pillar of India’s nuclear triad—the backbone of the country’s strategic defense. Unlike conventional submarines, this nuclear-powered giant can stay submerged for months, silently patrolling the deep, virtually invisible to the world above. And now, armed with the K-4 missile, it has transformed into a silent sentinel of India’s security.


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