Bihar (/ b ɪ ˈ h ɑːr /; Hindi: [bɪˈɦaːr] ⓘ) is a state in Eastern India. It is the third largest state by population, the 12th largest by area, and the 15th largest by GDP in 2021. [12] [13] [14] Bihar borders Uttar Pradesh to its west, Nepal to the north, the northern part of West Bengal to the east, and Jharkhand to the south.