Mahadebsarai is a village in Basta tehsil in district of Baleshwar, Odisha, India. As per the data provided by Census of India in 2011, total population of Mahadebsarai was 876 which includes 442 males and 434 females. Mahadebsarai covers 84 ha area. Pincode of Mahadebsarai is 756029.