The Indian Independence Act received royal assent on July 18, 1947, and came into effect on August 15, 1947.

Clement Attlee was the British Prime Minister from 1945 to 1951, during which time the Indian Independence Act was passed.

The primary objective of the Indian Independence Act was to grant independence to India and Pakistan, ending British rule in the subcontinent.

The Indian National Congress, led by Mahatma Gandhi and Jawaharlal Nehru, was instrumental in the negotiations with the British government that resulted in the Indian Independence Act.

Lord Mountbatten was the final Viceroy of India, serving from March 1947 until the transfer of power on August 15, 1947.

The Radcliffe Commission, headed by Sir Cyril Radcliffe, was tasked with determining the boundaries between India and Pakistan.

The princely state of Jodhpur, under the leadership of Maharaja Hanwant Singh, was the first to accede to the Dominion of India.

Junagadh, a princely state in Gujarat, initially declared its independence but later acceded to the Indian Union following military action.

Lord Mountbatten, the last Viceroy of India, continued as the first Governor-General of independent India until June 1948.

Jawaharlal Nehru became the first Prime Minister of independent India on August 15, 1947.

The province of Punjab was divided between India and Pakistan, with the western part becoming part of Pakistan and the eastern part remaining with India.

Sindh, North-West Frontier Province, and Baluchistan were all provinces of British India that became part of Pakistan.

The boundary line that divided India and Pakistan was known as the Radcliffe Line, named after Sir Cyril Radcliffe, the chairman of the boundary commission.

New Delhi served as the capital of both India and Pakistan during the initial years after independence, until Karachi became the capital of Pakistan in 1948.

The Indus Waters Treaty was signed between India and Pakistan in 1960 to resolve the dispute over the Indus River waters.