You can visit srisailam sanctuary and waterfalls or go to anantgiri hills for trekking..
Nagarjunasagar dam or just visit forts in bidar or warangal and many more
Also there is a place called mahabhubnagar..there is a beautiful waterfall and a 300yrs old banyan tree also you can go for outing to the Jurala and Koilsagar reservoirs which are quite close to Mahabubnagar.