K-4 Nuclear Missile Successfully Test-Fired Off Andhra Pradesh Coast From Indigenous-Built INS Arihant-Class Submarine
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Vishakhapatnam, January 19: In a major boost to Indian defence forces, India on Sunday successfully test-fired the 3,500 km strike range nuclear-capable submarine-launched K-4 ballistic missile off the coast of Andhra Pradesh from underwater platform. The missile was developed by the Defence Research and Development Organisation (DRDO). According to reports, the missile will be equipped on indigenous INS Arihant-class nuclear-powered submarines of the Indian Navy. India-Russia Sign $3 Billion Deal For Lease of A Nuclear Submarine.

K-4 is a nuclear-capable Intermediate-range submarine-launched ballistic missile. The work on developing K-4 began after facing difficulties in compacting similarly capable Agni-III to equip INS Arihant. The missile is reported to be 12 metres long with a diameter of 1.3 metres. It weighs nearly 17 tonnes. Indian Navy Confirms Re-Deployment of Nuclear Submarine, Aircraft Carrier in Arabian Sea Post Pulwama Attack.

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K-4 can carry a warhead weighing up to 2 tonnes and is powered solid rocket propellant. The developmental testing of K-4 started in January 2010. The missile was first reportedly test-fired on March 31, 2016, from INS Arihant, 45 nautical miles away from Vishakhapatnam coast in Andhra Pradesh. The missile was to be tested in October last year, but it was postponed due to Cyclone Bulbul.