India's first indigenous n-submarine INS Arihant to operate from 2015
India | February 07, 2014 17:32 ISTNew Delhi: India's first indigenous nuclear-powered attack submarine, INS Arihant, should be ready for deterrence patrols from 2015, roughly in about a year's time from now, its developers say.India's top missile scientist, Avinash Chander, said