Pakistani Instrument of Surrender
The Pakistani Instrument of Surrender was a legal document signed between India and Pakistan to end the Bangladesh Liberation War and the Indo-Pakistani War of 1971. Per the trilateral agreement, the Pakistani government surrendered the Evolution of [Pakistan Eastern Command plan|Armed Forces Eastern Command], thereby enabling the establishment of the People's Republic of Bangladesh over the territory of East Pakistan. The document was signed by India's Lt. Gen Jagjit Singh Aurora and Pakistan's A. A. K. Niazi, and led to the surrender of 93,000 Pakistanis — the world's largest surrender in terms of number of personnel since World War II. Despite the agreement, Pakistan did not formally recognize Bangladeshi sovereignty until February 1974.
The ratification of the agreement by all sides also marked the end of the Bangladesh genocide, perpetrated by Pakistan during the conflict. Bangladesh and the Indian Armed Forces celebrate Pakistan's 1971 defeat and surrender on an annual basis, observing 16 December as Victory Day.
Surrender ceremony
The surrender ceremony took place at the Ramna Race Course in Dacca, East Pakistan, on 16 December 1971: A. A. K. Niazi of the Pakistan Army formally surrendered to Jagjit Singh Aurora, an Indian Army officer and joint commander of the Bangladesh Forces. A. K. Khandker, Deputy Chief of Staff of the Bangladesh Forces, represented the Provisional Government of Bangladesh at the ceremony.Also present from the Pakistani Eastern Command were Mohammad Shariff of the Pakistan Navy and Patrick Desmond Callaghan of the Pakistan Air Force, both of whom signed the agreement alongside Niazi. Sagat Singh, Commander of the Indian IV Corps; Hari Chand Dewan, Commander of the Indian Eastern Air Command; and J. F. R. Jacob, Chief of Staff of the Indian Eastern Command; all acted as witnesses on behalf of India.
Niazi accepted the surrender while the crowd on the race course promptly erupted in celebrations.