Thiruvanaikka is also known as Jambukeswaram a Kshetra about 10km from Thirucharappally in Tamil Nadu and dedicated to Lord Shiva, more popular as Sri Jambukeswarar. It is a Jala Lingam and Kshetra is called Appu Stalam.
Sri Jambukeswarar temple is believed to have been built and developed by Cholas in 11th CE and received continued royal patronage. The Kshetra is situated between two rivers Cauvery and Kolidam.
According to legends, Parvati once cursed by Lord Shiva did penance here in the Jambu forests and consecrated the Jalalingam here.