Krishna , Kurnool , Mahbubnagar , Medak , Nalgonda , Sri Potti Sreeramulu Nellore , Nizamabad , Prakasam , Rangareddy , Srikakulam , Visakhapatnam , Vizianagaram , Warangal and West Godavari . Demographics Telugu Other languages Total Hindu 81% 8% 1 89% Muslim 1% 4% 2 5% Christian 1% 5% 3