Brahmanshasan Pt I B 1 is a village in Nilambazar tehsil in district of Karimganj, Assam, India. As per the data provided by Census of India in 2011, total population of Brahmanshasan Pt I B 1 was 1,865 which includes 979 males and 886 females. Brahmanshasan Pt I B 1 covers 87.43 ha area. Pincode of Brahmanshasan Pt I B 1 is N/A.