Gai Ganwa is a village in Madhuban tehsil in district of Mau, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Gai Ganwa was 761 which includes 412 males and 349 females. Gai Ganwa covers 118.1 ha area. Pincode of Gai Ganwa is 221602.