Aayilyam Pooja is Kerala's worship of the serpent deities — Nagaraja and Nagayakshi — performed on days ruled by the Aayilyam (Ashlesha) star, which recurs each month. Its grandest observance is the annual Aayilyam festival of the Mannarasala Sree Nagaraja Temple in the month of Thulam (October–November).
When: Aayilyam (Ashlesha) nakshatra days, recurring monthly; grandest at Mannarasala on Thulam Aayilyam (October–November) and also honoured in Kanni and Kumbham
Where: Kerala — Mannarasala Sree Nagaraja Temple (Haripad), Vetticode, Ameda, Pambummekkattu Mana, and household sarpa kavu groves
Deity: Nagaraja (the serpent king, honoured as a form of both Vishnu's Ananta and Shiva's Vasuki) with Nagayakshi and the serpent host
Observance: Noorum palum offering of rice flour, turmeric and milk; uruli kamazhthal vow for childbirth; special poojas in serpent shrines
Regional name: Aayilyam / Ayilyam Pooja (Malayalam) · the star is Ashlesha in Sanskrit
The serpent groves of Kerala
Serpent worship runs deeper in Kerala than almost anywhere in India. Old family compounds kept a sarpa kavu — an untouched grove where the nagas dwell — and tradition holds that Parashurama, having raised Kerala from the sea, settled the serpents in such groves to make the salt-cured land habitable, instructing families to honour them forever. The Aayilyam star, Ashlesha, is the serpents' own nakshatra, and days it governs are set apart for their worship. The most storied seat is Mannarasala near Haripad, where the sthala purana tells of a woman of the Illam who bore a five-headed serpent child; that Nagaraja is held to reside in the ancestral cellar still, and uniquely, the temple's chief priest is a woman, the Valiya Amma. Vetticode, Ameda, Nagercoil's Nagaraja temple and the Pambummekkattu Mana of Thrissur district complete a landscape in which serpent and household are bound in mutual care.
How Aayilyam Pooja is offered
On an Aayilyam day devotees bathe, dress traditionally and bring the serpents their gentlest offerings. The classic vazhipadu is noorum palum — rice flour, turmeric, and milk — served at the serpent stones with tender coconut water; its soft whites and golds are held to cool and please the nagas. Lamps are lit at the kavu or shrine, and prayers centre on family prosperity, freedom from sarpa dosha in the horoscope, skin ailments, and above all santhana bhagyam, the blessing of children. At Mannarasala the great vow for childbirth is uruli kamazhthal: a bell-metal vessel is overturned before Nagaraja and, when the prayer is answered, the family returns with the child to turn it upright and offer thanks. The annual Thulam Aayilyam sees the deities carried in procession to the Illam, where the Valiya Amma performs the year's most solemn poojas; Kanni and Kumbham Aayilyam days are also kept with special reverence.
Keeping Aayilyam devotion in Ottawa & Canada
The great serpent shrines are rooted in Kerala's soil and groves, but the devotion travels in gentler forms. Families in Canada can note the monthly Aayilyam star day — it can be found from any Malayalam calendar or this site's panchang, remembering that the nakshatra's local timing in Ottawa may shift a day from Indian listings — and mark it at home with a lamp, turmeric-and-milk offering made prayerfully before an image of Nagaraja or Ananta, and recitation of simple naga prayers. Many diaspora Malayalis arrange vazhipadus such as noorum palum or uruli kamazhthal at Mannarasala remotely through the temple's own offices, or entrust them to relatives visiting Haripad. Watching the Thulam Aayilyam festival by live stream has become common. A quiet parallel is to honour Nag Panchami with the wider Hindu community here — the intent is the same: respect for the serpent as guardian of land, water and lineage.
Questions
How often does Aayilyam Pooja come?
The Aayilyam (Ashlesha) star recurs roughly every 27 days, so serpent temples hold Aayilyam poojas monthly. The most celebrated observances are the annual festivals — above all Thulam Aayilyam at Mannarasala (October–November), with Kanni and Kumbham Aayilyam also held in special regard.
What is uruli kamazhthal?
A vow for the blessing of children, most famous at Mannarasala: a bell-metal uruli vessel is placed upside down before Nagaraja with prayer. When a child is born, the family returns to turn the vessel upright and offer thanksgiving poojas.
Source: Serpent-worship tradition of Kerala, centred on Mannarasala and the kavu groves. Regional versions may vary — this text follows the version most widely used in community worship.