Barki Puraini is a village in Rajpur tehsil in district of Buxar, Bihar, India. As per the data provided by Census of India in 2011, total population of Barki Puraini was 930 which includes 480 males and 450 females. Barki Puraini covers 125 ha area. Pincode of Barki Puraini is 802122.