Naval warship INS Kochi, the largest-ever warship to be built in India, has been commissioned by defence minister Manohar Parrikar at the Naval Dockyard in Mumbai on 30th september.The first of this class, INS Kolkata, was commissioned in August last year, while the third INS Chennai will be inducted towards end-2016.There is also the even bigger ongoing Rs 29,644-crore project to build another four stealth destroyers at MDL, with the first INS Visakhapatnam slated for delivery in 2018-2019.