Agra Province was a part of the United Provinces of Agra and Oudh of British India during the closing decades of the British Raj, from 1904 until 1947; it corresponded (under Section 4(4) of United Provinces Act 1, 1904) to the former regions, Ceded and Conquered Provinces (1805–1836) and the North Western Provinces (1836–1902).
See also Agra Presidency Agra Subah, Mughal precursor Company rule in India United Provinces of Agra and Oudh Presidencies and provinces of British India British Raj
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Further reading Dharma Bhanu, The Province of Agra: its history and administration (Concept Publishing Company, 1979)