Bhithsari is a village in Bhagwanpur tehsil in district of Begusarai, Bihar, India. As per the data provided by Census of India in 2011, total population of Bhithsari was 3,856 which includes 2,063 males and 1,793 females. Bhithsari covers 134 ha area. Pincode of Bhithsari is N/A.