Birwat Bazar is a village in Uchkagaon tehsil in district of Gopalganj, Bihar, India. As per the data provided by Census of India in 2011, total population of Birwat Bazar was 1,726 which includes 792 males and 934 females. Birwat Bazar covers 123 ha area. Pincode of Birwat Bazar is N/A.