It remains the post-Independence Indian naval force's just warship to be lost in war to date. INS Khukri was a British Type 14 Blackwood-class frigate of the Indian Navy. She was sunk off the shore of Diu, Gujarat, India by the Pakistan Navy Daphné-class submarine Hangor on 9 December 1971 amid the Indo-Pakistani War of 1971. This was the primary warship soaked in real life by a submarine since World War II.
It typically comprised five boats Khukri, Kirpan, Kalveti, Krishna and Kuthar, yet at the season of the occurrence Kuthar's engine compartment was being repaired in Bombay. The fourteenth Frigate Squadron of the Western Fleet was dispatched to crush the submarine. After the start of dangers on 3 December 1971, Indian Naval radio discovery gear distinguished a submarine prowling around 35 miles 56 km south-west of Diu harbor.