Hardinadwa is a village in Bagaha tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Hardinadwa was 7,093 which includes 3,761 males and 3,332 females. Hardinadwa covers 670.9 ha area. Pincode of Hardinadwa is 845106.