The Delhi Agreement was a trilateral agreement signed on 28 August 1973 between India, Pakistan and Bangladesh. and only ratified by India and Pakistan.  It allowed the repatriation of prisoners of war and interned officials held in the three countries after Bangladesh`s war of liberation in 1971. The agreement was criticized because Pakistan did not repatriate Urdu spokesmen to Bangladesh and failed to bring to justice 195 high-ranking military personnel accused of being admitted to the war.  Among the PoW, 195 Pakistani military officers detained in India have been identified as the main suspects in war crimes. Pakistan insisted that they be released as one of its main demands. She urged several Muslim countries to refuse recognition of Bangladesh until the release of the 195 officers.  India preferred their repatriation to Pakistan. In the text of the agreement, Bangladeshi Foreign Minister Kamal Hossain said: “It is particularly important that the document emphasizes the voluntary nature of return and gives UNHCR free access to refugees both in Iran and upon their return to Afghanistan. Under the agreement, the United Nations Relief and Works Agency for Refugees will continue to provide medical assistance and transportation from voluntary return centres (CRVs) in Iran. Although the agreement called for the repatriation of Russian-speaking biharis to Bangladesh, the Pakistani government withdrew its promise to relocate the Community to Pakistan.
 This led to the stateless Pakistani community stranded in Bangladesh. The treaty came into force on August 8, 1973 and expired on July 1, 1974. Under the agreement, UNHCR oversaw the repatriation of citizens from Bangladesh and Pakistan. According to the UN, 121,695 Bengalis have been transferred from Pakistan to Bangladesh. Among them are senior Bengal officials and the military. 108,744 civilians and non-Bengali officials were transferred from Bangladesh to Pakistan.  India released 6,500 Pakistani PoWs, most of whom were transported by train to Pakistan. In 1974, General Niazi was the last Pakistani officer to be symbolically returned by the Wagah border.  The Office of the United Nations High Commissioner for Refugees (UNHCR) welcomed the signing of a tripartite agreement on the voluntary return of Afghan refugees from Iran. “This agreement confirms the commitment of all parties to the principles of voluntary repatriation,” said Marie-Helene Verney, a spokeswoman for the agency, IRIN in the Iranian capital, Tehran. The consolidation of all parties to this process provided a solid continuum of what happened in Iran, what happened when the Afghans returned home, she said.
Monday`s agreement between Afghanistan, Iran and UNHCR follows last year`s agreement on a joint programme to facilitate the voluntary repatriation of Afghan refugees living in Iran. “This is a two-year agreement in which Iran is committed to respecting voluntary repatriation rights,” Verney said. The parties agreed that the 31st meeting of the tripartite commission in 2020 would be organized by the Government of the Islamic Republic of Pakistan. During the Bangladesh War in 1971, thousands of Bengali bureaucrats and military personnel and their families were interned by the Pakistani government in western Pakistan. In Bangladesh, many people in the Urdu community wanted to move to Pakistan. After Pakistan`s surrender on 16 December 1971, India detained several thousand Pakistani prisoners of war, including 195 military officers detained for behavioural misconduct. It was agreed to explore the possibility of establishing a technical committee to report to the Tripartite Commission on progress and challenges in implementing previous tripartite conclusions.