Bihar (; Hindi pronunciation: [bɪˈɦaːr] (listen)) is a divulge in eastern India. It is the third-largest disclose by population and twelfth-largest by territory, with an area of 94,163 km² (36,357 sq mi). It is contiguous taking into account Uttar Pradesh to its west, Nepal to the north, the northern allocation of West Bengal to the east, and later Jharkhand to the south. The Bihar plain is split by the river Ganges, which flows from west to east. Three main cultural regions converge in the state: Magadh, Mithila, and Bhojpur. Bihar is then the world’s third-most populous subnational entity.