Self-determination
In 1947, India gained independence from the British Empire. The empire was in decline but adapted to these circumstances by creating the British Commonwealth—since 1949 the Commonwealth of Nations—which is a free association of equal states. As India obtained its independence, multiple ethnic conflicts emerged in relation to the formation of a statehood during the Partition of India which resulted in Islamic Pakistan and Secular India. Before the advent of the British, no empire based in mainland India had controlled any part of what now makes up the country's Northeast, part of the reason for the ongoing insurgency in Northeast India. In 1971 Bangladesh obtained independence from Pakistan.
Indian Independence Act 1947
On 4 June 1947 Mountbatten held a press conference in which he addressed the question of the princely states, of which there were over 635.The precise number of princely states|date=November 2016}} The treaty relations between Britain and the Indian States would come to an end, and on 15 August 1947 the suzerainty of the British Crown was to lapse. They would be free to accede to one or the other of the new dominions or to remain independent.