Bihar (; Hindi pronunciation: [bɪˈɦaːr] (listen)) is a declare in eastern India. It is the third-largest make a clean breast by population and twelfth-largest by territory, with an area of 94,163 km² (36,357 sq mi). It is contiguous bearing in mind Uttar Pradesh to its west, Nepal to the north, the northern ration of West Bengal to the east, and like 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 furthermore the world’s third-most populous subnational entity.