Chidambaram

Chidambaram is a municipality and taluk (tehsil) headquarters in the Cuddalore district of Tamil Nadu. It is 11 km from the coast and 240 km south of Chennai by rail. Chidambaram is a major pilgramage site for Shaivites as the temple there houses the Akasha Lingam of Shiva.

Links:
Widipedia article on Chidambaram