Panagal is older than Nalgonda, and was a capital of several dynasties between the 9th and 13th-centuries. The Hindu governors and kings of various dynasties, including the Kakatiyas built major public infrastructure in Panagal. This included a water reservoir called the Udaya Samudram in historic texts that has evolved into the Panagal Reservoir with the modern era Srisailam project.V.S. Bhaskar (2004), District Census Handbook: Nalgonda District, Series 29, Census of India 2001, page 23, 684 The early dynasties also built several major temples in Panagal such as the Chaya Someswara temple and Pachala Someswara temple. These were mostly ruined during the Deccan wars between Islamic Sultanates and Hindu kingdoms. Four temples survive, while coins, inscriptions, temple parts, fort ruins and statues from other lost historic monuments found in this region are now preserved in the Panagal Museum established in 1982.
