Bairgachhi is a village in Sikti tehsil in district of Araria, Bihar, India. As per the data provided by Census of India in 2011, total population of Bairgachhi was 3,022 which includes 1,501 males and 1,521 females. Bairgachhi covers 243.6 ha area. Pincode of Bairgachhi is N/A.