Departments 

Districts

Undertakings / Boards / Corporations / Societies

Municipal Corporations /Municipalities

Statutory Organisations

Universities / Educational Institutions

Agriculture Department

Hindu Religious and Charitable Endowments Administration Department

Pudukkottai District Soil Watershed Atlas

Industries

Animal Disease Infosystem of Tamil Nadu

Information Technology

Census 2001: Population data of all villages in TN 

Izhai : The website of Handlooms & Textiles Department

Civil Supplies and Consumer Protection Department

Legal Services Authority

Co-operative Department

Loom World

Commercial Taxes Department 

Madras High Court

Commissionerate of Municipal Administration

Municipal Administration & Water Supply Department

Department of Sericulture

Tamil Nadu Police

Department of Treasuries and Accounts

Police Training College

Districts Environment Profile

Pension Directorate

Directorate of Industries and Commerce

Prison Department

Directorate of Town Panchayats

Raj Bhavan, Chennai

Directorate of Social Welfare - Child Adoption

Regional Transport Office, Coimbatore

Directorate of Technical Education

Registration Department 

Directorate of Vigilance and Anti-corruption

Right to Information Act 2005

District Central Library, Coimbatore

Road Sector Project

District Rural Development Agency (DRDA), Coimbatore

Domestic and Export Market Intelligence Cell

Sarva Shiksha Abhiyan (Anaivarukkum Kalvi Thittam)

Economic Offences Wing

School Education

Elections Department

Schools in Tamil Nadu

Electrical Inspectorate

Seed Certification Department

Electronic Clearance System (ECS) for Tamil Nadu Government Salary / Pension

Small Savings Directorate

Employment & Training Department  

Small Scale Industries - On-line Registration

Environment Department  

Social Defence

Environment Information System

State Ground & Surface Water Resources Data Centre (PWD)

Fire and Rescue Services

State Institute of Rural Development (SIRD)

Forensic Sciences Department

State Transport Authority (Commissionerate of Transport)

Forests Department

Tamil Nadu Budget Document

Geology and Mining

Tamil Nadu Legislative Assembly

Government Examinations

Tamil Nadu Rural Bazar

Government Museum

Tamil Nadu State Legal Services Authority

Handlooms, Handicrafts, Textiles and Khadi Department

Teachers Education Research and Training

Health and Family Welfare Department

Third State Finance Commission

Health and Family Welfare Dept- Tamil Nadu Health Systems Project  

Transport

High Court Cause List

Tiruchy Tourism

High Court Judgements

Tsunami Reconstruction Projects

Highways Department

Vazhndhu Kaatuvom Project

Aavin (Tamil Nadu Cooperative Milk Producers' Federation)

Adi Dravidar Housing and Development Corporation (TAHDCO)

Sports Development Authority

Adyar Poonga, Creek and Estuary

State Industries Promotion Corporation  (SIPCOT) 

Arasu Rubber Corporation Ltd

State Marketing Corporation Ltd (TASMAC)

AIDS Control Society (TANSACS)

State Child Labour Rehabilitation cum Welfare Society

Chennai Corporation AIDS Prevention and Control Society

State Express Transport Corporation  ;
Association of State Road Transport Undertakings

Tamil Nadu Civil Supplies Corporation Ltd

Tamil Nadu Co-operative Sugar Federation Ltd. TNCSF)  

Chennai Metro Water Supply & Sewerage Board (CMWS&SB)

Tamil Nadu e-Governance Agency

Co-optex

Tamil Nadu Forest Plantation Corporation Ltd

Domestic and Export Market Intelligence Cell,  TN

Tamil Nadu Housing Board

Electrical Licencing Board (TNELB)

Tamil Nadu Magnesite Ltd (TANMAG)

Electricity Board (TNEB)  

Tamil Nadu Newsprint and Papers Limited (TNPL)   

Electronics Corporation of Tamilnadu (ELCOT)

Tamil Nadu Pollution Control Board

Employees State Insurance - Coimbatore

Tamil Nadu Power Finance and Infrastructure Development Corporation Ltd.

Tamil Nadu State Council for Science and Technology

Industrial Development Corporation (TIDCO)

Tamil Nadu State Medicinal Plant Board

Industrial Investment Corporation (TIIC)

Tamil Nadu Tea Plantation Corporation

Industrial & Technological Consultancy Organisation of TN (ITCOT) 

Information Technology Park - Chennai (TIDEL)

Tamil Nadu Uniformed Service Recruitment Board  

Teachers Recruitment Board (TRB)

Maritime Academy

Tourism Development Corporation Ltd (TTDC)

Medical Services Corporation (TNMSC)

TTDC Online Booking of Tours and Hotel Accommodation

Tamil Nadu Urban Infrastrcuture Financial Services Ltd. (TNUIFSL)

Metropolitan Transport Corporation (Chennai) Ltd.

TWAD Board - Rain Water Harvesting

Non-formal and Adult Education - State Resource Centre (SRC)

Overseas Manpower Corporation 

Water Supply And Drainage Board (TWAD)

SAGOSERVE

Women Development Corporation Limited 

Women Development Corporation Limited -  Mutram Tamil Monthly

Electricity Regulatory Commission (TNERC)

State Planning Commission

Public Service Commission - Syllabus

Tamil Nadu Information Commission

State Finance Commission (TNSFC)

Tamil Nadu Public Service Commission (TNPSC)

State Human Rights Commission

Third State Finance Commission (TSFC)

Coimbatore

Cuddalore

Dharmapuri

The Nilgiris

Dindigul

Theni

Erode

Thoothukudi

Kanchipuram

Tiruchirappalli

Kanyakumari

Tirunelveli

Madurai

Tiruvarur

Nagapattinam

Namakkal

Viluppuram

Perambalur

Virudhunagar

Pudukkottai

Ramanathapuram

Alagappa Chettiar College of Engineering and Technology

Anna Institute of Management, Chennai 

Anna University

Annamalai University

Bharathiar University

Bharathidasan Institute of Management

Bharathidasan University

Connemara Public Library

Dr. MGR Medical University

Government College of Technology, Coimbatore

Tamil Nadu Dr. Ambedkar Law University

Indian Institute of Technology, Chennai 
(IIT, Madras)

Tamil Nadu Open University (TNOU)

Institute of Child Health and Hospital for Children

Tamil Nadu Science City

Institute of Community Medicine, 
Madras Medical College

University of Madras

Universities in TN