Lachhman Nagar is a village in Narkatia tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Lachhman Nagar was 734 which includes 385 males and 349 females. Lachhman Nagar covers 102.8 ha area. Pincode of Lachhman Nagar is 845302.