On June 15th 1947, the All-India Congress accepted the British plan for the partition of India in New Delhi. The plan for the Partition, also known as the Mountbatten Plan was declared by the last Viceroy of India, Lord Mountbatten.
It called for each dominion to be granted its independence by Aug. 15 of that year.
The partition of India in August 1947 is no doubt one of the most tragic and violent events the subcontinent has witnessed in recent history. British India was partitioned on the basis of religious demographics which went on to create the Sovereign Sates of the Dominion of Pakistan and the Union of India (later the Republic of India). The Dominion of Pakistan (which was created as a homeland for Indian Muslims) was later further divided into the Islamic Republic of Pakistan and the People’s Republic of Bangladesh.