Alaunja Kalan is a village in Ichak tehsil in district of Hazaribagh, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Alaunja Kalan was 1,951 which includes 1,023 males and 928 females. Alaunja Kalan covers 298 ha area. Pincode of Alaunja Kalan is 825402.