The PNS Ghazi was sunk under mysterious circumstances while on a reconnaissance mine-laying mission in the approaches to the Indian port of Visakhapatnam (Bay of Bengal) and sank at about 00:10 hours.

PNS Hangor was deployed near the coast of West Pakistan under the command of Captain Ahmed Tasnim.

Prior to her deployment, Ghazi continued to experience equipment failures and reportedly had aging issues.

[2][3] Ghazi was on a two-fold mission: the primary goal was to locate and sink Vikrant and secondary was to mine India's eastern seaboard which was to be fulfilled irrespective of the accomplishment of the first.

On 23 November, as part of second assignment, PNS Ghazi under Commander Khan began to look for INS Vikrant.

The mysterious sinking of Ghazi took place on 4 December 1971 during its hunt to find INS Vikrant and/or during the minelaying mission on the Visakhapatnam Port, Bay of Bengal.

[4] Another theory suggests an explosion of hydrogen gas which violently built up inside the submarine while its batteries were being charged underwater.

[citation needed] The Pakistan Navy has paid tribute to Commander Zafar and the crew of PNS Ghazi by establishing monuments of the fallen officers.

It was here that the Pakistan Navy first outlined the naval career of Commander Zafar Muhammad Khan and other officers.

A well-known Pakistani actor, Shabbir Jan, portrayed the life and career of Commander Zafar Muhammad Khan.