Kamasin Buzurg is a village in Maharajganj tehsil in district of Mahrajganj, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Kamasin Buzurg was 1,872 which includes 985 males and 887 females. Kamasin Buzurg covers 185.39 ha area. Pincode of Kamasin Buzurg is 273309.