Dayanagar Gosainpur is a village in Belsand tehsil in district of Sitamarhi, Bihar, India. As per the data provided by Census of India in 2011, total population of Dayanagar Gosainpur was 2,481 which includes 1,309 males and 1,172 females. Dayanagar Gosainpur covers 96 ha area. Pincode of Dayanagar Gosainpur is 843316.