Thirumanikuzhi Arulmigu Udavi Nayakar Temple (historically known as Thiru Manikuzhi) is an ancient 10th-century Chola granite sanctuary and the 17th holy Paadal Petra Sthalam in the historic Nadu Naadu region of Tamil Nadu. Situated along the serene Kedilam riverbank near Cuddalore, this revered temple derives its celebrated name Udavi Nayakar (The Helper Lord) from the divine miracle where Lord Shiva assumed the form of a hunter to protect a traveling merchant from highway bandits and restore his stolen wealth.
Enshrined in the 7th-century Tamil Tevaram hymns composed by child-saint Thirugnanasambandar, the temple is also famous as the holy venue where Lord Vishnu in His Vamana avatar performed penance to seek Lord Shiva's blessings before stepping across the three worlds. The temple complex features a classic Dravidian Rajagopuram, an inner sanctum housing the Swayambhu Lingam of Udavi Nayakar, a dedicated shrine for Goddess Ambujakshi, the sacred Kondrai tree (Sthala Vriksham), and the holy Kedilam River Ghat. Pilgrims visit Thirumanikuzhi to seek divine protection during travel, financial help in crises, and resolution of property disputes.