Department of Employment and Training
- Includes job alerts, career advice, and employer information.
- http://www.employment.tn.gov.in/

Tamil Nadu Electricity Regulatory Commission
- Information about this body, news, regulations, links.
- http://tnerc.tn.nic.in/

Tsunami - Disaster Management and Mitigation Department
- Includes damage reports, contact information, and accounts of relief operations.
- http://www.tn.gov.in/tsunami/default.htm

Chennai Metropolitan Development Authority
- Includes information on vacant shops, residential plots, building rules, regulations and contacts. Also contain downloadable application forms.
- http://www.cmdachennai.org

Elections Departments
- Details of enrollment for voting, and downloadable forms.
- http://www.elections.tn.nic.in/

Department of Environment
- Includes environmental information, district profiles, schemes, details of public utilities, and a photo gallery.
- http://www.environment.tn.nic.in/

Municipal Administration and Water Supply Department
- Details of organisational structure, orders, policies and rules, contact information.
- http://www.tn.gov.in/maws/

Health & Family Welfare Department
- Organisational structure, employee information, contact details.
- http://www.tnhealth.org/

Department of Geology & Mining,
- Details of the department, the mining industry in the state, and online forms.
- http://www.tnmine.tn.nic.in/

Tamil Nadu Forest Department
- Information on the department, biodiversity and wildlife, wildlife tourism and photograpby.
- http://www.forests.tn.nic.in/

The Directorate of Small Savings
- Information about the various Small Savings schemes formulated by Government of India.
- http://www.tnsmallsavings.com/

Tamil Nadu Telecom Circle
- Provides information about the facilities offered by Department of Telecom , waiting list details, directory enquiry,STD ISD codes, and village panchayat telephones.
- http://www.tamilnadu.dotindia.com/

Tamil Nadu Public Service Commission
- Role and functions of the organization. Includes recruitment news, results and examination schedule.
- http://www.tnpsc.org

Tamilnadu Corporation For Development of Women
- A government undertaking with a mission to build the capacity of poor and disadvantaged women in order that they are enabled to cross all social and economic barriers, and thereby facilitate their full development into empowered citizens. 
- http://www.tamilnaduwomen.org/index.htm

Social Defence Department
- Official website of Directorate of Social Defence, Government of Tamil Nadu with details on missing children Bureau, juvenile justice, rehabilitation institutions and childline phone services.
- http://www.tn.nic.in/socialdefence

Directorate of Pensions
- Government guide to pensions, with details of benefits, medical facilities, procedures, grievances, and other information. Includes downloadable forms.
- http://www.tn.gov.in/dop/

Registration Department
- Government registration services; includes information on the registration of births, marriages and deaths, for societies, other regulations.
- http://igregn.tn.nic.in/

Tamil Nadu Prison Department
- Information on practices, reformation, amenities, statistics, FAQs, photo and video gallery.
- http://www.tn.nic.in/prisons/

State Transport Authority
- Web site of Transport Commissioner. Includes details for obtaining driving licences, registration of vehicles and permits.
- http://www.tn.gov.in/sta/

Directorate of Estates
- Regional Office of the Directorate of Estates, Ministry of Urban Affairs, New Delhi.
- http://www.tn.nic.in/estate/

Regional Passport Office
- Official web site of Chennai office, with FAQs, status of enquiries and application forms online.
- http://passport.tn.nic.in

Tamil Nadu State Fire Service
- Details of services, tips and posters on fire prevention, fire station contact details, statistics, photo and video gallery.
- http://www.tn.nic.in/fireservice/