Thirunelli Festival is a two-day festival celebrated on Vishu day and its eve, in the Malayalam month of Medam (April) is the annual festival of Sree Thirunelli Devaswom at Thirunelli in Wayanad. Papanasini, the holy mountain spring here believed to have the divine power to absolve the soul of all its sins, flows near the shrine. A sacred rock nearby is the place where ritual offerings are made for the ancestors on the new moon days of Malayalam months of 'Karkkidakam' (July/ August), 'Thulam' (October/ November) and 'Kumbham' (February/ March).