Niazi signed an instrument of surrender with Indian Army's Eastern Command GOC-in-C, Lieutenant-General Jagjit Singh Aurora.

Inamul Haque Khan was born in Delhi in British India, on 25 May 1927.: 1 [1] He was educated at the Aligarh Muslim University where he attained his BA and MA in English literature and briefly tenured as professor of English at the Zakir Husain Delhi College from 1945–47.

[7] In 1974, Inamul Haque was repatriated to Pakistan under the agreement signed with India and Bangladesh, and was allowed to continue his service, eventually attaining the three-star rank in the Air Force.

[11] In his later years, he would be associated with the Tablighi Jamaat, in the process abandoning his old interests such as music, drama, bridge and chess.

[12] Air Marshal Inamul Haque Khan died of natural causes on the 10 August 2017 at the age of 90 after being ill for quite some time.

His funeral prayers were held at PAF Base Noor Khan on 11 August with full military honours.