Thiri (Cotton Wick) is a traditional cotton wick used in oil lamps (Nilavilakku and Diyas) during religious ceremonies, prayers, festivals, and auspicious occasions. Made from pure cotton, it is placed in oil or ghee and lit to symbolize light, purity, positivity, and divine blessings. Thiri is an essential item in Hindu rituals and festive celebrations such as Vishu, Diwali, and temple worship.