Saraiya Banwari is a village in Mehsi tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Saraiya Banwari was 1,492 which includes 746 males and 746 females. Saraiya Banwari covers 186 ha area. Pincode of Saraiya Banwari is 845426.