Kajru Kalan is a village in Hariharganj tehsil in district of Palamu, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Kajru Kalan was 84 which includes 45 males and 39 females. Kajru Kalan covers 206 ha area. Pincode of Kajru Kalan is 822131.