Karmahwa Buzurg is a village in Pharenda tehsil in district of Mahrajganj, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Karmahwa Buzurg was 2,410 which includes 1,272 males and 1,138 females. Karmahwa Buzurg covers 244.5 ha area. Pincode of Karmahwa Buzurg is 273155.