The main temple festival is during the Onam season, which falls on the month of August or September and is the most important event of the religious calendar here. The Onasadya or the Onam feast is held in a grand manner in the temple with people of various religions participating in it. After East India Company and Marthandavarma illegally annexed the territory from Kingdom of Kochi, the Onam festival was jointly organized by the 61 "Naduvazhis" (local rulers) under the leadership of the Maharaja of Travancore, till India regained independence. Communal harmony continues to be the hallmark of the celebrations, with people belonging to different religions turning out in large numbers for the Sadya in keeping with the spirit of the festival. Apart from Onam, the temple also observes important festivals in the Hindu calendar such as Vishu, Makara Sankranti, Navarathri and Saraswati Puja.