Babhnauli is a village in Areraj tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Babhnauli was 3,195 which includes 1,605 males and 1,590 females. Babhnauli covers 420 ha area. Pincode of Babhnauli is N/A.