Ratan Dularpur is a village in Arrah tehsil in district of Bhojpur, Bihar, India. As per the data provided by Census of India in 2011, total population of Ratan Dularpur was 1,568 which includes 851 males and 717 females. Ratan Dularpur covers 141 ha area. Pincode of Ratan Dularpur is N/A.