Ratas Gosai is a village in Harraiya tehsil in district of Basti, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Ratas Gosai was 279 which includes 151 males and 128 females. Ratas Gosai covers 28.82 ha area. Pincode of Ratas Gosai is 272135.