This year, Aadi Perukku will be celebrated on Tuesday, August 3, 2021. Aadi Perukku is a festival mostly celebrated in the state of Tamil Nadu on the 18th day of the Tamil month of Aadi in order to pay tribute to the life-sustaining properties of water. Aadi Perukku is the traditional thanksgiving festival signaling the start of a new crop cycle celebrated with fervour by the people in the Cauvery delta.