 Mannarasala Aayilyam is the main Temple Festival.On the day of Aayilyam asterism in the months of" Kanni and Thulam" (September and October), all the serpent idols in the grove and the temple are taken in procession to the illam (family connected with the temple) where the offerings of Nurum Palum (rice flour and milk), Kuruthi (a red liquid made of turmeric and lime) and cooked rice are made.The oldest female member of the family carries the idol of the Nagaraja and the procession is conducted with great pomp and rejoicing.