The famous rock-cut caves dedicated to Akkana and Madanna, who were ministers in the court of Abdul Hasan Tanashah in the 17th century are located here. A short distance away is another cave that dates back to the 2nd century BC, which hosts the Hindu trinity of Brahma, Vishnu and Maheshwara. The cave, facing east, has rectangular and octagonal pillars, and lower cave is triple-celled with pillars.

This architecture echoes the richness of the bygone era and the tragic end of great administrators of Qutub Shah. These are located at the foot of the hillock, above which, the famous Kanaka Durga temple is present, in the city of Vijayawada, Krishna District.

Source:

http://www.aptourism.gov.in/index.php/k2-separator/k2/item/158-akkanaandmadannacaves#.U7eEXpSSxl8

http://www.touristlink.com/india/akkana-and-madanna-caves/photos.html