Explanation:

 Recently, Indian Navy’s third stealth Scorpene class (of Project-75) Submarine INS Karanj has been commissioned at the Naval Dockyard Mumbai.

• The submarine is completely made in India. Unlike other submarines which were made under the supervision of France, INS Karanj has been constructed completely under the supervision of MDL (Mazgaon Dock Limited), Naval Engineers.
• Six Scorpene-class submarines are being built in India by the Mazagon Dock Shipbuilders Limited (MDL) Mumbai, under collaboration with M/s Naval Group, France.
• This year is being celebrated as the ‘Swarnim Vijay Varsh’ which marks 50 years of 1971 Indo – Pak war. Old INS Karanj, commissioned on 04 Sep 1969 at Riga in the erstwhile USSR, also took active part in the conflict.

Hence only statement 2nd is correct.