The Indian Navy is celebrating Submarine Day today commemorating the induction of the first submarine, the erstwhile INS Kalvari, into the Navy on this day in 1967.

The Foxtrot class submarine was decommissioned on the 31st May, 1996, after 29 years of service.

Addressing the annual Navy Day press conference on the 3rd of this month, Navy chief Admiral Sunil Lanba had spoken of the launch of INS Arihant nuclear submarine. He called it the third and most reliable part of India's nuclear triad.

He added that the deployment of the INS Arihant has been one of the key highlights for the Navy this year and has led to the expansion of India's nuclear capabilities.