Theerthanagiri Arulmigu Sivakozhuntheeswarar Temple (historically known as Thiru Theerthanagiri / Tondayamoor) is an ancient 10th-century Chola granite sanctuary and the 5th holy Paadal Petra Sthalam in the historic Nadu Naadu region of Tamil Nadu. Located near Kurinjipadi along the Cuddalore–Chidambaram coastal highway in Cuddalore district, this sacred temple derives its divine name from seven miraculous holy springs (Saptha Theerthams) created by Lord Shiva to heal Jambavan, the immortal bear king of the Ramayana.
Enshrined in the 7th-century Tamil Tevaram hymns composed by Saint Sundaramurthy Nayanar, the temple is famous for Lord Shiva's manifestation as a tender sprout of divine light (Sivakozhunthu). The temple complex features a classic Dravidian Rajagopuram, an inner sanctum housing the Swayambhu Lingam of Sivakozhuntheeswarar, a dedicated shrine for Goddess Oppilaa Nayaki, the golden Kondrai tree (Sthala Vriksham), and the legendary Jambava Theertham. Pilgrims travel to Theerthanagiri to bathe in the holy waters for curing skin diseases, joint pains, physical ailments, and seeking long health (Arogya).