Alagdiha is a village in Katkamsandi tehsil in district of Hazaribagh, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Alagdiha was 1,618 which includes 835 males and 783 females. Alagdiha covers 126 ha area. Pincode of Alagdiha is 825301.