Thirunallar is located 90 Kms from Thanjavur and 35 Kms from Mayiladuthurai and nearer to Karaikal.. This temple is dedicated to Lord Saneeswaran [Saturn]. As per Hindu legend, Saturn  occupies the most important position in the planetary position. Anybody who worships Saturn is believed to be relieved from curses, spells of ill luck and diseases. Legendry King Nala is said to have been relieved of all obstacles due to malefic influence of Saturn. Of the holy tanks around the temple , Nala Theertham is one of the important tanks where all the devotees take a holy dip to get relieved of all misfortunes and afflictions.