It is one of the eight self-manifested shrines of Lord Vishnu. God Ranganatha or Lord Vishnu has manifestedhimself in three places in the East at Srirangam, in the South at Ananthashaynam and in the West at Sriangapatna. At these three places the idols are ‘swayamvyaktmoorthies’ i.e. they have not been made by man but were believed to be self-manifested. The scared place of Lord Ranganatha in the West is considered to be a very holy place by the ‘Devas’ including Bramha Rudra and by the ‘Nithyasuris’ such as ‘Sanaka’ and by the ‘Rishis’ such as ‘Kapila’. It is also considered the most significant of the 108 main Vishnu temples. This temple is also known by other names like Periyakoil, BhoologaVaikundam, Thiruvaranga Tirupati and Bhogamandabam. The temple is massive in size and has a magnificent architectural style. This temple is situated on an island formed by the Cauvery and Coleroon rivers.