Nahar Rupauli is a village in Bisfi tehsil in district of Madhubani, Bihar, India. As per the data provided by Census of India in 2011, total population of Nahar Rupauli was 13,846 which includes 7,344 males and 6,502 females. Nahar Rupauli covers 749 ha area. Pincode of Nahar Rupauli is 847222.