India has successfully tested its long range submarine-launched ballistic missile, codenamed K-4, last month.
The K-4 weapon system which can strike targets up to 3,500 kilometres away, was tested twice in March from India's home-built Arihant ballistic missile submarine, a platform that's currently undergoing sea trials before a possible entry into service next year, India Today reported.
The K-4, a derivative of the more well known Agni ballistic nuclear missiles already in service, will be the most potent part of India's nuclear deterrent.
The missile will arm India's nuclear ballistic missile submarines, invisible and undetected until they need to be used. The missile, which has developed by the Defence Research and Development Organisation (DRDO), can carry a warhead weighing upto 2,000 kg. The DRDO plans to develop three missiles K-series missiles.