Biranchi is a village in Mainatanr tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Biranchi was 2,284 which includes 1,226 males and 1,058 females. Biranchi covers 231.8 ha area. Pincode of Biranchi is 845451.