Mainahamothia is a village in Sidhaw tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Mainahamothia was 573 which includes 289 males and 284 females. Mainahamothia covers 195.8 ha area. Pincode of Mainahamothia is N/A.