Prime Minister Narendra Modi will dedicate to the nation, the naval submarine INS Kalvari, the first of the Scorpene-class submarines at Mumbai today.<br/>'<br/>The commissioning ceremony will be held at the Naval Dockyard, which will be attended by Defence Minister Nirmala Sitharaman, Navy chief Admiral Sunil Lanba and top defence officials.<br/>'<br/>INS Kalvari is a diesel-electric attack submarine that has been built for the Indian Navy by the Mazagon Dock Shipbuilders Limited. It is the first of six such submarines that will be inducted into the Indian Navy, and represents a significant success for the 'Make in India" initiative'.The project has been undertaken with French collaboration. <br/>'<br/>The officials said, Kalvari underwent around 120 days of extensive sea trials and tests for various equipments and the vessel is expected to bolster India's maritime prowess.<br/>'<br/>The first Kalvari, commissioned on 8th December, 1967, was also the first submarine of the Indian Navy. It was decommissioned on May 31, 1996 after nearly three decades of service.