Darmaha is a village in Kalyanpur tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Darmaha was 10,553 which includes 5,505 males and 5,048 females. Darmaha covers 1188.1 ha area. Pincode of Darmaha is N/A.