Attukal Pongala is the main festival of this temple. Attukal Pongala Mahotsavam is a 10 days festival which falls on February - March every year (Malayalam month of Kumbham). The festival begins on the Karthika star with the traditional Kappukettu and Kudiyiruthu ceremony, the idol of Devi, is embellished with Kappu (Bangles). The 9th day of the festival, 'Pooram day' is the major attraction, The Attukal Pongala day and the festival will conclude with the Kuruthitharpanam at 10th day makam star night. Millions of women gather every year in the month of Kumbham around this temple and prepare Pongala (rice cooked with jaggery, ghee, coconut as well as other ingredients) in the open in small pots to please the Goddess Kannaki. Pongala (literally means to boil over) is a ritualistic offering of a sweet dish, consisting of rice porridge, sweet brown molasses, coconut gratings, nuts and raisins. It is done as an offering to the presiding deity of the temple - the Goddess - popularly known as Attukal Amma. Goddess Attukal devi is believed to fulfill their wishes and provide prosperity.