Mahuadahar is a village in Palojori tehsil in district of Deoghar, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Mahuadahar was 1,311 which includes 645 males and 666 females. Mahuadahar covers 69 ha area. Pincode of Mahuadahar is 814146.