Executive Summary:
This document presents the Ministry of Housing and Urban Affairs' response to a parliamentary question regarding the status of sewage treatment plants (STPs) and common effluent treatment plants (CETPs) in Tamil Nadu under the Atal Mission for Rejuvenation and Urban Transformation (AMRUT). The response clarifies the roles of the central and state governments in sanitation projects. Data reported by the State on the AMRUT portal is included in the response.
Key Points / Main Content:
* **General Principles:**
* Sanitation is a state subject; STPs and CETPs are managed by State Governments, Urban Local Bodies (ULBs), and Urban Development Authorities.
* The Government of India supports state efforts through schemes like AMRUT and AMRUT 2.0, providing financial and technical assistance.
* Under AMRUT, States/UTs select, appraise, prioritize, and implement projects, and maintain them after completion.
* **AMRUT Project Status in Tamil Nadu:**
* 18 sewerage and septage management projects worth ₹5,670.8 crore have been grounded under AMRUT.
* 289.97 MLD STP capacity has been developed; projects for 210.03 MLD STP capacity are under implementation.
* The State has not undertaken Common Effluent Treatment Plants under AMRUT.
* **Funding:**
* Funds under AMRUT are allocated/released to the State/UTs, not project-wise.
* Project-wise details of approved costs for sewerage and septage management projects under AMRUT are provided in an annexure.
* **Annexure Details (Grounded Projects):**
* Lists 18 grounded projects, including their location, project name, total project cost, and status (Work Completed or At implementation stage).
* Completed projects include underground sewerage in Ambur, Chennai (TTRO plants), Kumbakonam, Pallavaram, Rajapalayam, Rameswaram and Velankanni along with UGSS in Chennai.
* Projects at implementation stage include underground sewerage schemes in Chennai, Coimbatore, Tiruchirappalli, Tirunelveli, Tiruppur and Vellore.
Impact Analysis:
* **State Governments/Union Territories:**
* *Impact:* Responsible for the selection, appraisal, prioritization, implementation, and maintenance of sewerage and septage management projects under AMRUT.
* *Action Required:* Continue to manage and maintain existing STPs and prioritize the completion of projects under implementation.
* **Urban Local Bodies/Urban Development Authorities:**
* *Impact:* Responsible for the on-the-ground management and operation of STPs and CETPs within their jurisdictions.
* *Action Required:* Ensure the efficient operation and maintenance of STPs within their areas and collaborate with the state government on project implementation.
* **Ministry of Housing and Urban Affairs:**
* *Impact:* Provides financial and technical support to States/UTs through schemes like AMRUT and AMRUT 2.0.
* *Action Required:* Continue to provide support to the States/UTs, monitor project progress, and ensure funds are allocated effectively.
Key Entities Referenced
Tamil Nadu: A state in southern India, focus of the sewage treatment plant status.
Atal Mission for Rejuvenation and Urban Transformation (AMRUT): A Government of India initiative to improve urban infrastructure, including sewage treatment.
Atal Mission for Rejuvenation and Urban Transformation 2.0 (AMRUT 2.0): A continuation of the AMRUT scheme by Government of India.
Sewage Treatment Plants (STP): Facilities designed to treat sewage and wastewater.
Common Effluent Treatment Plants (CETP): Plants that treat effluent from multiple industries.
Urban Local Bodies (ULBs): Local government bodies responsible for urban administration and services.
Chennai: A major city in Tamil Nadu, with multiple sewage treatment projects underway.
Million Litre per Day (MLD): A unit of measurement for the capacity of sewage treatment plants.
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
(d) the total number of such Common Effluent Treatment Plants set up in
Tamil Nadu under AMRUT?
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
project after their completion is also the responsibility of State
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.
…2/--2-
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 Status
Project
Cost
(In ₹. Cr.)
1 Ambur Underground Sewerage 165.55 Work Completed
2 Chennai Construction of 45 MLD 440 Work Completed
Capacity TTRO Plant at
Koyambedu including
Transmission Main for
Conveying Product Water
to SIPCOT Industries in
Sriperumpudur
3 Chennai Construction of 45MLD 330 Work Completed
capacity TTRO plant at
Kodungaiyur and conveying
treated water to various
industries at Manali –
Ennore corridor and Manali
– Minjur corridor near
Chennai
4 Chennai UGSS 795.89 Work Completed
5 Kumbakonam Provision of UGSS 67.8 Work Completed
6 Pallavaram Providing Underground 25.37 Work Completed
Sewerage System in
unsewered Areas And
Newly Developed Areas –
Pallavapuram Municipality
7 Rajapalayam Underground Sewerage 251.24 Work Completed
8 Rameshwara Underground Sewerage at 52.6 Work Completed
m Rameswaram
9 Velankanni Underground Sewerage 30.51 Work Completed
Scheme of Velankanni
Town Panchayat
10 Chennai Underground Sewerage at 245 At implement-
Chennai ation stage
11 Coimbatore Underground Sewerage at 465.02 At implement-
Coimbatore ation stageS.No. City Name of the Project Total Status
Project
Cost
(In ₹. Cr.)
12 Tiruchirappalli Underground Sewerage - 378 At implement-
Phase II Area ation stage
13 Tiruchirappalli Underground Sewerage – 335.07 At implement-
Phase – III ation stage
14 Tirunelveli Underground Sewerage - 291.8 At implement-
Phase I Area ation stage
15 Tirunelveli Underground Sewerage 440.19 At implement-
Phase III ation stage
16 Tiruppur UGSS Phase II 636.4 At implement-
ation stage
17 Vellore Underground Sewerage - 343.51 At implement-
Phase II Area ation stage
18 Vellore Underground Sewerage 376.85 At implement-
Phase III ation stage