Radhanagar is a village in Udhwa tehsil in district of Sahibganj, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Radhanagar was 6,330 which includes 3,224 males and 3,106 females. Radhanagar covers 126.82 ha area. Pincode of Radhanagar is 816101.