Inar Barwa is a village in Bagaha tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Inar Barwa was 1,058 which includes 547 males and 511 females. Inar Barwa covers 277.3 ha area. Pincode of Inar Barwa is 845101.