Nageswaraswamy Temple is a Hindu temple dedicated to Shiva located in Kumbakonam in Thanjavur district, Tamil Nadu, India. The presiding deity is revered in the 7th-century Tamil Saiva canonical work, the Tevaram, written by Tamil poet saints known as the nayanars and classified as Paadal Petra Sthalam. The temple is counted as the earliest of all Chola temples. Shiva in the guise of Nagaraja, the serpent king..