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In page Begum Hazrat Mahal:

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During the Indian Mutiny, from 1857 to 1858, Begum Hazrat Mahal's band of supporters, led by Raja Jailal Singh, rebelled against the forces of the British; later, they seized control of Lucknow and she declared her son, Birjis Qadr, as the ruler (Wali) of Oudh.[1]