Maljhaghar is a village in Mohanpur tehsil in district of Deoghar, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Maljhaghar was 305 which includes 168 males and 137 females. Maljhaghar covers 46.41 ha area. Pincode of Maljhaghar is 814120.