INS Vagsheer: What last Scorpene submarine under project 75 means for Navy

Defence Secretary Ajay Kumar launched INS Vagsheer, the last of the six Scorpene-class submarines under Project 75 in Mumbai. After launch, the submarine will undergo a set of tests and trials for more than a year to ensure that it is fully combat-ready. Named after sandfish, a deadly deep water sea predator of the Indian Ocean, the first submarine 'Vagsheer' was commissioned in December 1974. It was decommissioned in April 1997. The new submarine is the latest incarnation of its earlier version. Watch this video for more details.