Nij Mandhara is a village in Kundhit tehsil in district of Jamtara, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Nij Mandhara was 763 which includes 395 males and 368 females. Nij Mandhara covers 224.53 ha area. Pincode of Nij Mandhara is 815353.