Analysis of information sources in references of the Wikipedia article "Domínio da Índia" in Portuguese language version.
India ... The Republic of India since 1950 after independence was achieved in 1947 when the Federal Union of India (and Dominion of India) was created.
The most devastating blow to old relationships came when Britain officially withdrew from India on August 15, 1947, and the two self-governing dominions of Pakistan and the Union of India were established. In June 1948 King George VI dropped "emperor of India" from his titles, at the same time that Lord Mountbatten was succeeded as governor-general of Indian by a native Indian.
Notes: 2 The Union of India was the official name of the country between independence on August 15, 1947 and the establishment of the Republic of India on January 26, 1950. During this time, India remained an independent dominion under the British Crown within the British Commonwealth of Nations.