Birajapur is a village in Ramkrishna Nagar tehsil in district of Karimganj, Assam, India. As per the data provided by Census of India in 2011, total population of Birajapur was 796 which includes 414 males and 382 females. Birajapur covers 44.85 ha area. Pincode of Birajapur is 788737.