Rampur Udai is a village in Alinagar tehsil in district of Darbhanga, Bihar, India. As per the data provided by Census of India in 2011, total population of Rampur Udai was 3,022 which includes 1,582 males and 1,440 females. Rampur Udai covers 367 ha area. Pincode of Rampur Udai is N/A.