Chak Fatehullah is a village in Mehsi tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Chak Fatehullah was 912 which includes 479 males and 433 females. Chak Fatehullah covers 25.1 ha area. Pincode of Chak Fatehullah is N/A.