Tirunageswaram is a vast temple known for its shrine to Rahu, one of the nine celestial bodies in the Navagraha situated 8kms from Paradise Resort. A legend has it that the mythological serpents Adiseshan, Dakshan and Kaarkotakan worshipped Shiva here. Legend also has it that King Nala worshipped Shiva here as in Thirunallar. Rahu is instrumental in strengthening one's power and converting even an enemy into a friend. He is ruled by Goddess Durga. The main deity's name is Nageshwarar and Ambal's name is Girigujambikai. She is decorated as a small girl in the Mornings, as young lady in Noons and as lady in evenings.. Here Ragu resides with his wife and everyday, during Rahu kalam, when Milk is poured over Rahu idol, it miraculously changes to blue colour. People having Ragu dosha come here during Rahu kalam and perform Abishekas.