Deputy Prime Minister of India Vallabhbhai Patel orders the Army to move into Hyderabad to integrate it with the Indian Union.

Vallabhbhai Jhaverbhai Patel, commonly known as Sardar Vallabhbhai Patel, was an Indian independence activist and statesman who served as the first Deputy Prime Minister and Home Minister of India from 1947 to 1950. He was a senior leader of the Indian National Congress, who played a significant role in the Indian independence movement and India's political integration. In India and elsewhere, he was often called Sardar, meaning "chief". He acted as the Home Minister during the political integration of India and the Indo-Pakistani War of 1947.

Hyderabad State was a princely state in the Deccan region of south-central India with its capital at the city of Hyderabad. It is now divided into the present-day state of Telangana, the Kalyana-Karnataka region of Karnataka, and the Marathwada region of Maharashtra in India.

The Annexation of Hyderabad was a military operation launched in September 1948 that resulted in the annexation of the princely state of Hyderabad by India, which was dubbed a "police action".

The Dominion of India, officially the Union of India, was an independent dominion in the British Commonwealth of Nations existing between 15 August 1947 and 26 January 1950. Until its independence, India had been ruled as an informal empire by the United Kingdom. The empire, also called the British Raj and sometimes the British Indian Empire, consisted of regions, collectively called British India, that were directly administered by the British government, and regions, called the princely states, that were ruled by Indian rulers under a system of paramountcy, in favor of the British. The Dominion of India was formalised by the passage of the Indian Independence Act 1947, which also formalised an independent Dominion of Pakistan—comprising the regions of British India that are today Pakistan and Bangladesh. The Dominion of India remained "India" in common parlance but was geographically reduced by the lands that went to Pakistan, as a separate dominion. Under the Act, the King remained the monarch of India but the British government relinquished all responsibility for administering its former territories. The government also revoked its treaty rights with the rulers of the princely states and advised them to join in a political union with India or Pakistan. Accordingly, one of the British monarch's regnal titles, "Emperor of India," was abandoned.