• Adi Dravidar and Tribal Welfare    

• Agriculture   

• Animal Husbandry  

• Archives  (Tamil Nadu Archives and Historical Research)

• Backward Classes,  Most Backward Classes & Minorities Welfare   

• BC, MBC and Minorities Welfare Department : Career Guidance (PDF File in Tamil)

• Birth & Death Certificate  Issual at Town Panchayats

• Chennai Corporation

• Chennai Metropolitan Water Supply & Sewerage Board

• Chennai Metropolitan Development Authority (CMDA)

• Commercial Tax   

• Collegiate Education

• Food, Civil Supplies & Consumer Protection Department

• Co-operative Department

• Department of Inspectorate of Factories

• Employment and Training - Employment Wing

• Employment and Training - Training Wing

• Energy (Tamil Nadu Electricity Board)

• Energy (Tamil Nadu Energy Development Agency)

• Energy (Electrical Inspectorate)  

• Finance Department- Pensions & Other Retirement Benefits

• Finance Department- Small Savings Scheme  

• Fisheries  

• Forensic Sciences

• Forests

• Geology and Mining

• Handlooms and Textiles  

• Health and Family Welfare

• Highways

• Hindu Religious and Charitable Endowments   

• Information and Public Relations   (Tamil)

• Information and Tourism

• Information Technology  

• Institute for Water Studies

• Irrigation

• Labour & Employment

• Micro , Small and Medium Enterprises Department 
  (formerly Small IndustriesDepartment)

• Metro Water

• Municipal Administration : Water Supply, Building  Licence, Name Transfer, etc.

• Planning  and  Development (State Planning Commission)

• Public Department - Political Pension

• Public Works Department (Buildings Organisation)

• Public Works Department (Water Resource Organisation)

• Registration

• Revenue  

• School Education

• Sericulture  

• Small Industries Development Corporation - Schemes

• Social Welfare and Nutritious Meal Programme   

• Sports Development Authority of Tamil Nadu

• State Industries Promotion Corporation of Tamil Nadu Limited (SIPCOT)

• State Transport Authority

•  Sugar

•  Stationery and Printing Department

• Tamil Nadu Adi-Dravidar Housing Development Corporation (TAHDCO)  

•  Tamil Nadu Backward Classes and Minorities Economic
   Development Corporation

•  Tamil Nadu Cements Corporation Ltd.

•  Tamil Nadu Coop. Housing Federation

•  Tamil Nadu Coop. Milk Producers Federation Ltd. (Aavin)

•  Tamil Nadu Fisheries Development Corporation Ltd.

•  Tamil Nadu Housing Board

•  Tamil Nadu Industries Investment Corporation

•  Tamil Nadu Integrated Nutrition Project

•  Tamil Nadu Magnesite Limited

•  Tamil Nadu Minerals Limited

•  Tamil Nadu Newsprint and Papers Limited  

•  Tamil Nadu Police  

•  Tamil Nadu Pollution Control Board

•  Tamil Nadu Poultry Development Corporation

•  Tamil Nadu Salt Corporation Limited

•  Tamil Nadu Slum Clearance Board

•  Tamil Nadu Traders Welfare Board

•  Tamil Nadu Veterinary and Animal Sciences University

•  Tamil Nadu Wakf Board  

•  Targeted Public Distribution System

•  Technical Education (DOTE)

•  Tourism

•  Town and Country Planning Department

•  Town Panchayats Directorate (DTP)

•  Transport  

•  Vigilance and Anti-Corruption Directorate

•  Water Supply, Building  Licence, Name Transfer, etc.

• Youth Welfare and Sports Development   

Click here to view the Citizen Charter documents of Government of India departments