The most important festival observed in the world famous Kadampuzha Bhagavathy temple in Malappuram district, Kerala is the Thrikarthika festival in Malayalam Vrischika Masam (November – December). It is believed that Adi Shankaracharya had found in the presence of Kadampuzha Bhagavathy in the place on the Thrikarthika day.
The temple does not observe any festival that involves the usual processions and other traditional Kerala temple festival activities.
Thrikarthika is observed as the annual Pratishta day with Shuddhi, Navakom, Panchagavya and kalasams. Poomoodal is an important event on the day and it is performed by the temple administration.
Thrikarthika vilakku (lighting of thousands of lamps) is performed at early morning hours on the day.
Prasadam Oottu or free food is held from 10:30 AM.
Other important rituals in the temple are Ramayana Masam in Karkidakam month, Bhagavata Saptaham in Thulam month.
Rig Veda Laksharchana is held in the temple for 8 day in Dhanu Masam (December – January). Rig Veda archana and abhishekam are part of the ritual which is attended by Vedic scholars.
Traditional temple art forms are staged on all days during the Rigveda laksharchana.
Dravya Kalasam in Thulam month (October – November) is another important ritual. It is noted for Aacharyavaranam, Mulayidal, Praasdasudhi, Rakshoknahoma, Asthrakalasa, Vaasthukalasa, Dhara, Sudhi, Homas, Thatwahoma, and finally concludes with Brahmakalasa Abhisekha accompanied by Valiyapani and Melavadhyams.
Vishu, Thiruvonam, Shivratri and Navratri are the other important festivals in the temple.