The history of Annavaram is deeply rooted in Hindu mythology and tradition. According to legend, the Ratnagiri Hills were once the abode of Lord Vishnu, who manifested himself as Sri Satyanarayana Swamy. The present temple was constructed in the late 19th century by Sri I.V. Ramalingam, a local zamindar. The temple gained popularity over the years, becoming a major pilgrimage center. The Satyanarayana Vratam, which is performed here frequently, is believed to fulfill the desires of devotees. The temple has undergone several renovations and expansions, but it has retained its historical and spiritual significance, attracting millions of devotees from across the country.