Chak Chauhani is a village in Madhuban tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Chak Chauhani was 2,215 which includes 1,163 males and 1,052 females. Chak Chauhani covers 180.92 ha area. Pincode of Chak Chauhani is 845426.