The Madayi (Madai) Kavu Temple, formally known as Thiruvarkadu Bhagavathi Temple, is one of the most ancient and important Bhadrakali shrines in North Kerala. Situated in Kannur, it holds the title of the ‘Mother Temple’ for all Bhadrakali shrines in the region and was historically the tutelary deity of the Kolathiri Royal Family. The temple is unique for its powerful dedication to Goddess Kali, the slayer of the demon Darika, and its worship follows the ancient and distinct Koula Sampradaya Tantric tradition. This tradition permits non-vegetarian offerings, such as the famous Kozhi Kalasham (poultry sacrifice), alongside the traditional Guruthi (blood offering substitute), though Ash Gourd is now often used in place of meat. Its major festivals are the Pooram (March-April) and the Kalasam (Perumkaliyattam) in May-June, which features the ceremonial ritual fishing known as Kavu Pidi. The Kavu is widely revered as the last resort for devotees seeking the removal of black magic and occult sorcery.