The Shri Prasanna Chennakesava Swamy Temple is one of the oldest and most revered temples in Prakasam District, located on the scenic Kesavadhri Hill in Ongole. Dedicated to Lord Chennakesava, an incarnation of Lord Vishnu, the temple stands as a remarkable symbol of the architectural and spiritual heritage of the Vijayanagara Empire.The temple traces its origins to the late 16th century when Vijayanagara feudatory rulers Rama Bhadra Raju and Raghupathi Raju, devoted followers of Lord Venkateswara, established the shrine. Initially, the deity was worshipped within their fort, but later a grand temple was constructed on the hilltop to accommodate the growing number of devotees.Known for its peaceful atmosphere, ancient stone architecture, and panoramic views of Ongole, the temple attracts pilgrims and tourists throughout the year. The temple complex also houses several sub-shrines and hosts vibrant religious celebrations during major Hindu festivals, reflecting centuries of uninterrupted devotion and cultural tradition.Today, Shri Prasanna Chennakesava Swamy Temple remains a significant spiritual landmark of Prakasam District, offering visitors a unique blend of history, faith, and architectural beauty.