Bairia Arazi is a village in Basantpur tehsil in district of Supaul, Bihar, India. As per the data provided by Census of India in 2011, total population of Bairia Arazi was 1,103 which includes 573 males and 530 females. Bairia Arazi covers 62 ha area. Pincode of Bairia Arazi is N/A.