Ganga Sagar is a village in Allapur tehsil in district of Ambedkar Nagar, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Ganga Sagar was 300 which includes 150 males and 150 females. Ganga Sagar covers 24.18 ha area. Pincode of Ganga Sagar is 224147.