Lok Sabha Question No. 3133 (UNSTARRED), answered on 2025-08-07
Subject: Status of Sewage Treatment Plants in Tamil Nadu
Ministry: HOUSING AND URBAN AFFAIRS
Asked by: Dr. Ganapathy Rajkumar P

## GOVERNMENT OF INDIA

## MINISTRY OF HOUSING AND URBAN AFFAIRS LOK SABHA

## UNSTARRED QUESTION NO. 3133 TO BE ANSWERED ON AUGUST 07, 2025

## STATUS OF SEWAGE TREATMENT PLANTS IN TAMIL NADU

NO. 3133.  DR. GANAPATHY RAJKUMAR P:

Will the Minister of HOUSING AND URBAN AFFAIRS be pleased to state:

- (a) the total number of sewage treatment plants set up and those out of these functioning in Tamil Nadu as on date under Atal Mission for Rejuvenation and Urban Transformation (AMRUT);
- (b) the total funds earmarked, released and spent on each sewage treatment plant, plant-wise;
- (c) whether the Government has released any fund for setting up Common Effluent Treatment Plants in Tamil Nadu and if so, the details thereof; and
- the  total  number  of  such  Common Effluent  Treatment Plants set up in

## ANSWER

## THE MINISTER OF STATE IN THE

## MINISTRY OF HOUSING AND URBAN AFFAIRS (SHRI TOKHAN SAHU)

(a) to (d): Sanitation is State subject; and setting up and management of Sewerage Treatment Plants (STP)/ Common Effluent Treatment Plants (CETP)  is  the  responsibility  of  the  State  Governments  and  concerned Urban Local Bodies (ULBs)/ Urban Development Authorities. Government of  India  supplements  the  efforts  of  the  States  through  schematic interventions/ advisories. It provides financial and technical support to the States through various schemes/ Missions such as Atal Mission for Rejuvenation and Urban Transformation (AMRUT) and AMRUT 2.0.

Under  AMRUT,  States/  Union  Territories  (UTs)  are  empowered  to select, appraise, prioritise and implement the projects. Maintenance of State project after their completion is also the responsibility of Governments/ ULBs.

As reported by the State on AMRUT portal, 18 sewerage and septage management projects worth ₹5,670.8 crore have been grounded under AMRUT. Under AMRUT 289.97 Million Litre per Day (MLD) STP capacity have been developed and projects for development of 210.03 MLD STP capacity are at implementation stage. The State has not taken Common

Effluent Treatment Plants under AMRUT.

- (d) Tamil Nadu under AMRUT?

Funds under AMRUT are allocated/released to the State/UTs and not projects  wise.  Project-wise  details  of  approved  cost  of  the  projects  in sewerage  and septage management  sector  under AMRUT  are  at Annexure.

*****

ANNEXURE REFERRED TO IN REPLY TO PART (a) to (d) OF UNSTARRED QUESTION  NO.  3133  REGARDING  'STATUS  OF  SEWAGE  TREATMENT PLANTS IN  TAMIL  NADU',  DUE  FOR  ANSWER  IN  THE  LOK  SABHA  ON 07.08.2025.

## Grounded Projects in Sewerage and Septage Management Sector under AMRUT

|   S.No. | City         | Name of the Project                                                                                                                                                                  |   Total Project Cost (In ₹. Cr.) | Status                    |
|---------|--------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------|---------------------------|
|       1 | Ambur        | Underground Sewerage                                                                                                                                                                 |                           165.55 | Work Completed            |
|       2 | Chennai      | Construction of 45 MLD Capacity TTRO Plant at Koyambedu including Transmission Main for Conveying Product Water to SIPCOT Industries in Sriperumpudur                                |                           440    | Work Completed            |
|       3 | Chennai      | Construction of 45MLD capacity TTRO plant at Kodungaiyur and conveying treated water to various industries at Manali â€' Ennore corridor and Manali â€' Minjur corridor near Chennai |                           330    | Work Completed            |
|       4 | Chennai      | UGSS                                                                                                                                                                                 |                           795.89 | Work Completed            |
|       5 | Kumbakonam   | Provision of UGSS                                                                                                                                                                    |                            67.8  | Work Completed            |
|       6 | Pallavaram   | Providing Underground Sewerage System in unsewered Areas And Newly Developed Areas â€' Pallavapuram Municipality                                                                     |                            25.37 | Work Completed            |
|       7 | Rajapalayam  | Underground Sewerage                                                                                                                                                                 |                           251.24 | Work Completed            |
|       8 | Rameshwara m | Underground Sewerage at Rameswaram                                                                                                                                                   |                            52.6  | Work Completed            |
|       9 | Velankanni   | Underground Sewerage Scheme of Velankanni Town Panchayat                                                                                                                             |                            30.51 | Work Completed            |
|      10 | Chennai      | Underground Sewerage at Chennai                                                                                                                                                      |                           245    | At implement- ation stage |
|      11 | Coimbatore   | Underground Sewerage at Coimbatore                                                                                                                                                   |                           465.02 | At implement- ation stage |

|   S.No. | City            | Name of the Project                    |   Total Project Cost (In ₹. Cr.) | Status                    |
|---------|-----------------|----------------------------------------|----------------------------------|---------------------------|
|      12 | Tiruchirappalli | Underground Sewerage - Phase II Area   |                           378    | At implement- ation stage |
|      13 | Tiruchirappalli | Underground Sewerage â€' Phase â€' III |                           335.07 | At implement- ation stage |
|      14 | Tirunelveli     | Underground Sewerage - Phase I Area    |                           291.8  | At implement- ation stage |
|      15 | Tirunelveli     | Underground Sewerage Phase III         |                           440.19 | At implement- ation stage |
|      16 | Tiruppur        | UGSS Phase II                          |                           636.4  | At implement- ation stage |
|      17 | Vellore         | Underground Sewerage - Phase II Area   |                           343.51 | At implement- ation stage |
|      18 | Vellore         | Underground Sewerage Phase III         |                           376.85 | At implement- ation stage |