separate state of Telangana. Telangana region comprise of 10 districts : Adilabad , Hyderabad , Khammam , Karimnagar , Mahbubnagar , Medak , Nalgonda , Nizamabad , Rangareddy , and Warangal . http://en.wikipedia.org/wiki/Telangana Telangana region has an area of 114,840 square kilometres (44,340 sq mi), and a population of 35,286,757 (2011 census)