Indian Navy Day Indian Navy Day is celebrated every year on 4 December. Naval Personnel is remembered on this day. Navy Day is celebrated as a celebration of the victory of the Indian Navy in the 1971 India-Pakistan war. On 3 December, our airspace and border area were attacked by the Pakistani Army. This attack started the 1971 war. ‘Operation Trident’ was launched to give a befitting reply to Pakistan. The operation was launched with a target of Karachi headquarters of the Pakistani Navy. An invading naval group consisting of a missile boat and two warships attacked a group of