Callaghan of the Pakistan Air Force's Eastern Air Force Command, who signed the agreement.

Also present were Vice-Admiral Mohammad Shariff, commander of the Pakistani Naval Eastern Command and Air Vice-Marshal Patrick D. Khandker, Deputy Commander-in-Chief of the Bangladesh Armed Forces, and Lieutenant General J F R Jacob of the Indian Eastern Command, acted as witnesses to the surrender. Lieutenant General Amir Abdullah Khan Niazi and Lieutenant General Jagjit Singh Aurora, Joint Commander of Indian and Bangladesh Forces, signed the instrument amid thousands of cheering crowds at the racecourse.

The surrender took place at the Ramna Race Course in Dhaka on 16 December 1971. The Instrument of Surrender was a written agreement that enabled the surrender of the Pakistan Eastern Command in the Bangladesh Liberation War, and marked the end of the Indo-Pakistani War of 1971 in the Eastern Theater. On 16 December 1971, Lieutenant General Amir Abdullah Khan Niazi, CO of Pakistan Armed Forces located in East Pakistan signed the Instrument of Surrender. One of the most violent wars of the 20th century, it witnessed large-scale atrocities, the exodus of 10 million refugees and the killing of 3 million people by the Pakistani armed forces. The war pitted East Pakistan and India against West Pakistan, and lasted for a duration of nine months. In 1971 Bangladesh fought the Bangladesh Liberation War against Pakistan to become an Independent country, which resulted in the secession of East Pakistan from the Islamic Republic of Pakistan and established the sovereign nation called Bangladesh. Jagjit Singh Aurora in Dhaka on 16 Dec' 1971. Niazi to the Joint Commander of the Liberation Force Lt. History Signing of Pakistani Instrument of Surrender by Pakistan's Lt.Gen. This day and event is also commemorated across India as the 'Vijay Diwas' to honor Bangladeshis who laid down their lives in the war. It commemorates the Pakistani Instrument of Surrender, wherein the commander of the Pakistani Forces, General AAK Niazi, surrendered to the Mukti Bahini and their Indian allies, ending the nine-month Bangladesh Liberation War and 1971 Bangladesh genocide and marking the official secession of East Pakistan to become the new state of Bangladesh. Victory Day ( Bengali: বিজয় দিবস Bijôy Dibôsh) is a national holiday in Bangladesh celebrated on 16 December to commemorate the defeat of the Pakistan Armed Forces in the Bangladesh Liberation War in 1971 and the Independence of Bangladesh.

Bangladesh victory day banner