town, administrative headquarters of Monghyr district, Bihar state, northeastern India, on the Ganges River. Monghyr is said to have been founded by the Guptas (4th century AD) and contains a fort that houses the tomb of the Muslim saint Shah Mushk Nafa (died 1497). In 1763 Mir Qasim, nawab of Bengal, made Monghyr his capital and built an arsenal and several palaces. It was constituted a municipality in 1864.
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