Benusar Buzurg is a village in Pachrukhi tehsil in district of Siwan, Bihar, India. As per the data provided by Census of India in 2011, total population of Benusar Buzurg was 6,036 which includes 3,092 males and 2,944 females. Benusar Buzurg covers 64 ha area. Pincode of Benusar Buzurg is N/A.