Swamy Nellaiappar and Kanthimathi Ambal Temple is a twin temple dedicated to Lord Shiva
. It is situated at the center of Tirunelveli
, about 2 km from the Tirunelveli Junction Railway Station
. The temple dates back to 700 AD, and is known for its musical pillars and other sculptures.
The temple's Mani Mandapam (musical pillars) provides the sound in various pitches when struck. Somavara Mandapam a 1000 pillared hall, Tamra Sabha with intricate wood work, and the Vasantha Mandapam are other noteworthy features. The Sangili Mandapam connects the temples of Nellaiappar and Kantimathi.
A shrine to Sandana Sabhapati is located right behind the Tamra Sabha. Periya Sabhapati is another shrine devoted to Nataraja.
The main festivals of the temple are Navratri, Tirukkalyanam in Aippasi and Arudra Darisanam. The Brahmotsavam lasts for an extended period of time during the Tamil month of Aani.