There are nine Theerthams in this temple, all of which held very sacred.
Brahma Theertham: This is in the South side of 4th Praharam (South Car Street)
Indhira Theertham: This is in the 3rd Praharam opposite to Kasi Viswanatha Swami sannathi.
Jambu Theertham: This is in the South West 3rd Praharam near the old Jambukeshwara temple (Opposite to Sangareshwarar temple and opposite to Kubera Linga)
Rama Theertham: This is outside the temple. Just directly opposite to the temple across the G.S.T Road. You can see this on the way to the Srirangam. This is where the “Thai Poosam theppam” festival is celebrated. This Theertham is full of beautiful Lotus flower plants.
Srimath Theertham: This is nothing but the water spring oozing inside the Sanctorum of Lord Shiva.
Agni Theertham: This is the well in the South East corner of 3rd Praharam. Just opposite on the side of Vasantha Mandapam and temple Nandhavanam.
Agathiya Theertham: This is the small well opposite to Amman sannadhi and close the “Palli Arai”
Soma Theertham: Its believed that this the “Chandra Pushkarni” in the Srirangam Sri Ranganathasami temple (adjacent to Sri Rama sannadhi)
Soorya Theertham: This is in the South West corner of the 4th praharam. Just opposite to the 1000 pillar mandapam. This Tank is architecturally beautifully built with two stories of Mandapams around the tank. Each mandapam built with 100 pillars. “Theppam” festival is celebrated in this tank in the Tamil month “Aadi” on “Pooram” day (the day when the star is Pooram, which is the star of Akilandeswari).