Surdahia is a village in Khalilabad tehsil in district of Sant Kabir Nagar, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Surdahia was 602 which includes 291 males and 311 females. Surdahia covers 41.26 ha area. Pincode of Surdahia is 272125.