The Partition of India was the division of British India in 1947 which accompanied the creation of two independent dominions, India and Pakistan. The Dominion of India is today the Republic of India, and the Dominion of Pakistan is today the Islamic Republic of Pakistan and the People's Republic of Bangladesh. The partition involved the division of two provinces, Bengal and the Punjab, based on district-wise Hindu or Muslim majorities. The boundary demarcating India and Pakistan became known as the Radcliffe Line. It also involved the division of the British Indian Army, the Royal Indian Navy, the Indian Civil Service, the railways, and the central treasury, between the two new dominions. The partition was set forth in the Indian Independence Act 1947 and resulted in the dissolution of the British Raj, as the British government there was called. The two self-governing countries of Pakistan and India legally came into existence at midnight on 14–15 August 1947.
The partition displaced between 10 and 12 million people along religious lines, creating overwhelming refugee crises in the newly constituted dominions; there was large-scale violence, with estimates of loss of life accompanying or preceding the partition disputed and varying between several hundred thousand and two million. The violent nature of the partition created an atmosphere of hostility and suspicion between India and Pakistan that plagues their relationship to the present.