The National Assembly was initially not inaugurated as President Yahya Khan and the PPP chairman Zulfikar Ali Bhutto did not want a party from East Pakistan in federal government. Instead, Yahya appointed the veteran Bengali politician Nurul Amin as Prime Minister, asking him to reach a compromise between the PPP and Awami League. However, this move failed as the delay in inauguration had already caused significant unrest in East Pakistan. The situation escalated into a civil war that led to the formation of the independent state of Bangladesh. The Assembly was eventually inaugurated in 1972 after Yahya resigned and handed power to Zulfikar Ali Bhutto. Bhutto became Prime Minister in 1973 after the post was recreated by a new constitution.