Gangwara Buzurg is a village in Runisaidpur tehsil in district of Sitamarhi, Bihar, India. As per the data provided by Census of India in 2011, total population of Gangwara Buzurg was 4,773 which includes 2,538 males and 2,235 females. Gangwara Buzurg covers 355 ha area. Pincode of Gangwara Buzurg is N/A.