Thoothukudi city Municipal Corporation is a port town situated in the Gulf of Mannar region at longitude 78o13E and latitude 8o45N at an average elevation of 2.0m above Mean Sea Level (MSL) About 125km North of Cape Commorin and 540 km south of Chennai .

Thoothukudi City Municipal Corporation has registered a population of 3,20,466 in 2001 and 3,72,408 as per 2011 census. The growth rate shows an increase of 16 percentage. Thoothukudi City Municipal Corporation is formed by annexing 5 nearby Panchayats to Thoothukudi Municipality there exists water supply distribution system in Municipal area and Panchayat area . Only erstwhile municipal area has house service connection facilities. The other merged Panchayats area have water supply service only through public street fountains. At present the quantity of water supply supplied to this corporation does not meet the demand fully. Hence, this project is for the augmentation of the existing system for meeting the per capita water demand of 135 liters up to 2044 and that through the house service connections in the entire Corporation area.