| Installation cost | Rs.52.01 Crore |
| Population (2011 Census) | 4,74,838 |
| Date of commencement | 01.04.2007 |
| Date of completion of maintenance | 31.03.2012 |
| Present Supply of water | 100.00 LPCD |
| Sewerage contribution | 63.19 LPCD |
| Sewerage flow at present (2014) | 8.5 MLD |
| Intermediate (2008 as per design ) | 24.20 MLD |
| Ultimate (2033) | 38.55 MLD |
| Length of Sewers Main | 187 Km |
| Pumping station | 4 Nos |
| Length of pumping main | 11.45 Km |
| STP (Ramaiyanpatti) | 1 No. |
| Waste Stabilization pond | 8 No |
| UGD connections (OLD UGD) | 26555 Nos |
| Installation cost | Rs.1.13 Crore |
| Area covered | Tirunelveli Town & Palayapettai |
| Date of commencement | 1989 |
| No.of House Service connections | 1498 |
| Pumping station | Nainarkulam |
| Disposal point | Oxidation pond at Ramaiyanpatti & now linked to STP site |
| STORM WATER DRAIN | 299.45 KM |