Mahabubnagar . It is the second largest district in the state in terms of area. It is located 100 kilometres (62 mi) away from the state capital  Hyderabad . The largest towns in the district are  Mahabubnagar ,  Narayanpet ,  Atmakur ,  Achampet , Gadwal ,  Wanaparthy ,  Jadcherla ,  Kalwakurthy ,  Shadnagar