Vaitheeswaran koil, the famous temple, is situated in Nagapattinam District, Tamilnadu. Lord Shiva is the primary deity here in the name Vaitheeswaran. The water in the tank of this temple is considered holy and the prasadham is considered a medicine. People who have health ailments visit this temple to get cured.
There is a separate shrine for lord Parvathi (Thaiyal Nayagi) and lord Muruga (Selvamuthukumaraswamy).
There are many interesting legends which praise the healing power of the deities and the holy water of the Sithamirtha tank in the temple.
Muthuswamy Dikshitar – One among the musical trinity of carnatic music was losing his eyesight. He prayed Lord Muruga wholeheartedly to help him cure his critical condition. Lord Muruga appeared in his dream as Selvamuthukumaraswamy, asked him to bathe in the Sithamirtha tank of Vaitheeswaran koil and visit his shrine.
Muthuswamy Dikshitar followed the instructions and got his eyesight back. He dedicated a song to Lord Muruga praising his kindness towards his devotees.
Delhi Nawab’s military head was suffering from a severe stomach pain. No medicine was able to cure it. He visited Vaitheeswaran koil and after worshipping in the shrine, his pain got cured. He gifted several invaluable ornaments for the deities of the temple. He started a trust and special poojas are done till date under the trust