Marahia is a village in Lauriya tehsil in district of Pashchim Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Marahia was 3,949 which includes 2,069 males and 1,880 females. Marahia covers 358.2 ha area. Pincode of Marahia is N/A.