Kalwari Mafi is a village in Marihan tehsil in district of Mirzapur, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Kalwari Mafi was 2,687 which includes 1,479 males and 1,208 females. Kalwari Mafi covers 855 ha area. Pincode of Kalwari Mafi is 231210.