The Pakistani prisoners of war during the Indo-Pakistani War of 1971 were the servicemen deployed in the Eastern Command of the Pakistan armed forces who were held in by the Indian Army.
The intentions for retreating from their eastern wing by Yahya administration in Pakistan was conveyed to the United Nations on 10 December 1971, and a formal surrender was submitted and accepted when the Commander of Eastern Command and Governor of East Pakistan, Lieutenant-General A.A.K. Niazi, signed an instrument of surrender with his counterpart, Lieutenant General Jagjit Singh Aurora, GOC-in-C of Eastern Command, on 16 December 1971.
The surrender ultimately culminated in the conclusion of liberation efforts in East as India accepts the unilateral ceasefire to end its war efforts in the western theatre on 17 December 1971. The surrender was the largest surrender that the World had witnessed since the end of World War II, with Indian Army taking approximately ~90,000—97,000 Pakistani servicemen as war prisoners in East.