Parsauni is a village in Sidhaw tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Parsauni was 4,610 which includes 2,383 males and 2,227 females. Parsauni covers 951.4 ha area. Pincode of Parsauni is 845105.