The provisional government was formed in the town of Mujibnagar ( formerly Baidyanathtala ) . Its capital in exile was Calcutta , the capital of the Indian state of West Bengal and the former capital of British India , which hosted thousands of Bangladeshi refugees escaping the 1971 genocide . The provisional government included many defectors from the Pakistani government , foreign service and military ; as well as leading intellectuals and cultural figures from East Pakistan . Its chief executive was Tajuddin Ahmad , the first Bangladeshi Prime Minister
1971 genocide
1971 Bangladesh genocide
Provisional Government of Bangladesh