Nallamala Forest is located in the Indian states of Andhra Pradesh and Telangana. It is part of the Eastern Ghats. Nagarjunsagar-Srisailam Tiger Reserve is the largest tiger reserve in India and is spread across districts of Nandyal, Kadapa, Prakasam, Palnadu, Nalgonda, and Nagarkurnool. As It is one of the oldest forest in india has seen downfall and rise of ancient empires as well as seen the era of warriors battle and spiritual saints journey. In Telugu language the local of Andhra pradesh nallamala means black hills which describe dense and dark nature.