Sundaramurthy Nayanar was an eighth-century poet-saint and one of the most important Nayanars.
He is believed to have performed many miracles thanks to his great devotion to Shiva.
The Northern face of the gopuram at Kapali temple depicts one such miracle. During his journey through Kongu Nadu, he was informed about an eight-year-old boy who was swallowed by a crocodile at Avinashi (near Coimbatore). Using his divine powers Sundarar resurrected the boy, to the amazement of all. This event is commemorated every year as “Mudalai vaay pillai utsavam” on Panguni Uthram at the Avinashishwarar temple, Avinashi.