Parsagarhi is a village in Tribeniganj tehsil in district of Supaul, Bihar, India. As per the data provided by Census of India in 2011, total population of Parsagarhi was 21,237 which includes 10,998 males and 10,239 females. Parsagarhi covers 2280 ha area. Pincode of Parsagarhi is N/A.