During the 1971 Bangladesh War, thousands of Bengali bureaucrats and military personnel were interned in West Pakistan along with their families by the Pakistani Government. In Bangladesh, many in the Urdu-speaking community wished to relocate to Pakistan. India held several thousand Pakistani prisoners of war after the Surrender of Pakistan on 16 December 1971, including 195 military officers held for breach of conduct. PresidentZulfikar Ali Bhutto threatened to put interned Bengali officials on trial if Bangladesh proceeded with plans to indict alleged Pakistani war criminals.
Implementation
The treaty came into effect on 8 August 1973 and ended on 1 July 1974. Under the terms of the agreement, UNHCR supervised the repatriation of Bangladeshi and Pakistani citizens. According to the UN, 121,695 Bengalis were moved from Pakistan to Bangladesh. They included high-level Bengali civil servants and military officers. 108,744 non-Bengali civilians and civil servants were moved from Bangladesh to Pakistan. India released 6,500 Pakistani PoWs, who were mostly transported by train to Pakistan. In 1974, General Niazi was the last Pakistan officer symbolically repatriated through the Wagah Border. Although the agreement called for the repatriation of Urdu-speaking Biharis in Bangladesh, the Pakistani Government backtracked on its promise to resettle the community in Pakistan. This gave rise to the stateless Stranded Pakistani community in Bangladesh.
War crimes suspects
Among the PoWs, 195 Pakistani military officers held in India were identified as prime war crimes suspects. Pakistan pressed for their release as one of its key demands. It pressured several Muslim countries to withhold recognition of Bangladesh until the release of the 195 officers. India favoured their repatriation to Pakistan. In the text of the agreement, the Foreign Minister of Bangladesh, Kamal Hossain, stated that:
the excesses and manifold crimes committed by those prisoners of war constituted, according to the relevant provisions of the UN General Assembly resolutions and international law, war crimes, crimes against humanity and genocide, and that there was universal consensus that persons charged with such crimes as 195 Pakistani prisoners of war should be held to account and subjected to the due process of law.
Pakistan evaded Bangladesh's request to hold the trial of war crimes suspects. However, Aziz Ahmed, the Pakistani delegate at the Delhi meeting, stated that his government "deeply regretted any crimes that may have been committed".