Ayillyam is the 9th asterism among the 27 birth star constellation of Hindu astrology. It is supposed to be very significant for Naga Gods. Every month on the day of Ayillyam nakshathra, a grand pooja is being conducted with great religious observances to appease all Naga Gods including Nagaraja, Nagakanya and their retinue. Being a pompous experience, most of the devotees take part in it to accomplish the ritual without any lapse. It is auspicious to do this pooja at least once for three consecutive years in order to achieve desired things in life.

Pooja starts with Mahaganapathi Homam after Nirmaalyadarsan at 4 a.m. After Homam, the usual procedures of Usha:pooja, vellariyidal and noorum paalum, Ayillya pooja starts at around 11 a.m. There will be the distribution of breakfast and lunch for the devotees as prasada oottu. After Ayillya pooja, all the prasadams including the ashtanivedya (Vellanivedyam,, Paalpaayasam, Appam, Avil, Katina Paayasam, Thrimadhuram, Chathussatham, Kadallippazha Nivedyam) will also be distributed among the devotees and visitors.