Banwari Patti is a village in Keotiranway tehsil in district of Darbhanga, Bihar, India. As per the data provided by Census of India in 2011, total population of Banwari Patti was 2,004 which includes 1,056 males and 948 females. Banwari Patti covers 56 ha area. Pincode of Banwari Patti is 847121.