Mahajanadahalli is a village in Hadagalli tehsil in district of Bellary, Karnataka, India. As per the data provided by Census of India in 2011, total population of Mahajanadahalli was 4,313 which includes 2,166 males and 2,147 females. Mahajanadahalli covers 1931.91 ha area. Pincode of Mahajanadahalli is 583115.