Udayagiri Fort

Udayagiri Fort is a historic hill fort located in Udayagiri town in Nellore district, Andhra Pradesh, atop a hill about 3,079 feet above sea level. Originally built in the 14th century by the Gajapati rulers and later strengthened by the Vijayanagara Empire, it is known for its massive stone ramparts, ruined palaces, temples and mosques. The fort offers panoramic views and is notable for its strategic hilltop architecture.

Visitors can expect a steep uphill trek to a ruined hilltop fort complex with massive stone walls, bastions, gateways and remains of palaces, temples and mosques including Ranganatha Temple and Chinna and Pedda Masjids. The site is spread across the hilltop with rocky terrain, scattered ruins and panoramic views of the surrounding plains and town. There are no restored interiors; exploration is outdoors among historic structures and natural hill landscape.

Udayagiri Fort was originally built in the 14th century by the Gajapati rulers of Odisha (Langula Gajapati) and later captured and extensively developed by the Vijayanagara Empire under rulers including Krishna Deva Raya. It served as an important strategic stronghold controlling the region between Nellore and Cuddapah. Later it came under the control of the Nawabs of Arcot and other local rulers. The fort is noted for its impregnable hilltop defenses and its role in medieval Deccan history.

The fort complex reflects a blend of Hindu and Islamic architectural elements, housing the ancient Ranganatha Swamy Temple, Chinna Masjid and Pedda Masjid within its walls. It represents the cultural synthesis of Vijayanagara and later periods and remains a locally significant heritage site associated with regional history and traditions.