Situated in the heart of the busy Alleppey town,know popularly as the Venice of Kerala, Mullakkal Devi Temple is a unique temple with no roof over the sanctum sanctorum and the diety is exposed to sun and rain. The other parts of the temple also do not conform to the architectural pattern of Kerala temples except the gopuram in front and the grand anakottil (elephant house) behind it.
Apart from the main Goddess there are also small temples for Hanuman, Subramanya and Nagas (serpents) in the temple. An idol of Lord Krishna and Lord Ayyappa has also been consecrated.
From the first of Vruschiga month (October-November) a festival is celebrated for forty one days. The last eleven days is called as Chirappu festival and is a famous festival in these parts and is referred to as Alappuzha Chirappu. The first Sunday of December is celebrated in this temple as a women's festival. On that Day all functions of the temple are carried out by women only. Thousands of lamps are lit on that day evening by ladies coming from far and near. During the last 11 days of the chirappu, the whole town will be full of lights and decoration and will be the busiest days of the town.
Navarathri (Dussera) is also celebrated in the temple. On Maha navami day 150 girl children are given new cloths and are worshipped as Kumaris.