In 1946, the Labour government in Britain, its exchequer exhausted by the recently concluded World War II, realised that it had neither the mandate at home, the international support, nor the reliability of native forces for continuing to control an increasingly restless India In February 1947, Prime Minister Clement Attlee announced that the British government would grant full self governance to British India by June 1948 at the latest. The new viceroy, Louis Mountbatten, advanced the date for the transfer of power, believing the continuous contention between the Congress and the Muslim League might lead to a collapse of the interim government. He chose the second anniversary of Japans surrender in World War II, 15 August, as the date of power transfer. The British government announced on 3 June 1947 that it had accepted the idea of partitioning British India into two states the successor governments would be given dominion status and would have an implicit right to secede from the British Commonwealth. The Indian Independence Act 1947 (10 & 11 Geo 6 c. 30) of the Parliament of the United Kingdom partitioned British India into the two new independent dominions of India and Pakistan (including what is now Bangladesh) with effect from 15 August 1947, and granted complete legislative authority upon the respective constituent assemblies of the new countries. The Act received royal assent on 18 July 1947.