This temple is located on the southeastern portion of “Porthamarai Kulam” and which is near Big Street. Alwar Sannathi, Sreenivasa Sannathi and Gopalan Sannathi are other temples located within this temple. Achutha Nayaka of Thanjavur constructed the Ramaswamy temple during 16th Century.
This temple consists of one Gopuram, One Maha Mandapam and Karuvarai. The columns of Maha mandabam are enriched with some of the famous stone carvings of Vamana Avatharam, Meenakshi Kalyanam, Sukreeva Pattabisekam and Ramayanam.
The wall paintings of Outer Prahara explains the series of incidents from the great Epic “Ramayanam”.