Sihari Sardaha is a village in Bhanpur tehsil in district of Basti, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Sihari Sardaha was 503 which includes 275 males and 228 females. Sihari Sardaha covers 69.31 ha area. Pincode of Sihari Sardaha is N/A.