Barwat Pasrain is a village in Bettiah tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Barwat Pasrain was 12,961 which includes 6,852 males and 6,109 females. Barwat Pasrain covers 644.4 ha area. Pincode of Barwat Pasrain is 845438.