Chamarjana Urf Dudhia is a village in Keotiranway tehsil in district of Darbhanga, Bihar, India. As per the data provided by Census of India in 2011, total population of Chamarjana Urf Dudhia was 1,814 which includes 1,006 males and 808 females. Chamarjana Urf Dudhia covers 155 ha area. Pincode of Chamarjana Urf Dudhia is 847306.