Thervoy Kandigai reservoir is the fifth major reservoir built to satisfy drinking water needs of Chennai city. The reservoir was constructed by combining Thervoy Kandigai and Kannankottai lakes in Thiruvallur district. It was commissioned by Amit Shah, Internal Affairs minister of India, on 21 November 2020. Water levels in the reservoir reached its full capacity on 11 March 2021 for the first time. [1]