Sarai Kasthan is a village in Nawabganj tehsil in district of Barabanki, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Sarai Kasthan was 1,463 which includes 763 males and 700 females. Sarai Kasthan covers 193.82 ha area. Pincode of Sarai Kasthan is 225412.