prone, population density is low and economically backward region... Anantapur receives lowest rainfall in the state. Andhra Pradesh has 23 districts:  Adilabad ,  Anantapur ,  Chittoor ,  Kadapa ,  East Godavari ,  Guntur ,  Hyderabad ,  Karimnagar ,  Khammam ,  Krishna ,  Kurnool , Mahbubnagar ,  Medak ,  Nalgonda ,  Sri