Public, General Administration, Indian Administrative Service, Indian Police Service, Indian Forest Service, Other All India Service, District Revenue Officers, Police, Home, Special Initiatives, Special Programme Implementation, Welfare of Differently abled persons.

Tel.No :  044-25672345

Irrigation Projects including small Irrigation, Legislative Assembly, Governor and Ministry, Elections and Passports, Minerals and Mines.

Tel.No :  044-25674113, 25676210

Municipal Administration, Urban and Water Supply.

Tel.No :  044-25675370

Co-operation, Statistics and Ex-Servicemen Welfare

Higher Education including Technical Education, Electronics, Science and Technology

Tel.No :  044-25671142

Public Works (Buildings, Highways and Minor Ports)

Tel.No :  044-25671129

Agriculture, Agricultural Engineering, Agro Service Co-operatives, Horticulture, Sugarcane Excise, Sugarcane Development and Waste Land Development

Tel.No :  044-25670682

Revenue, District Revenue Establishment, Deputy Collectors, Disaster Management

Tel.No :  044-25670203

Industries, Tamil Official Language and Tamil Culture, Archeology.

Tel.No :  044-25671696

Law, Courts, Prisons and Prevention of Corruption

Tel.No :  044-25671118

Housing, Rural Housing, Town Planning projects and Housing Development, Accommodation Control, Urban Planning, Urban Development and Chennai Metropolitan Development Authority.

Tel.No :  044-25674510

Rural Development, Panchayats and Panchayat Unions, Poverty Alleviation Programmes, Rural Indebtedness.

Tel.No :  044-25671184

Rural Industries including cottage industries, small Industries, Slum Clearance Board.

Tel.No :  044-25674020

Information & Publicity, Film Technology and Cinematograph Act, Newsprint Control, Stationery and Printing, Government Press.

Tel.No :  044-25673130

Social Welfare including Women and Children Welfare, Orphanages and Correctional Administration, Integrated Child Development Scheme and Beggar Homes and Social Reforms & Nutritious Meal Programme

Tel.No :  044-25673209

Fisheries, Fisheries Development Corporation and Animal Husbandry

Tel.No :  044-25672265

Transport, Nationalised Transport and Motor Vehicles Act.

Tel.No :  044-25678843

Forests  

Tel.No :  044-25673126

Food and Civil Supplies, Consumer Protection and Price Control

Tel.No :  044-25671427

Electricity, Non Conventional Energy Development, Prohibition and Excise, Molasses

Tel.No :  044-25673037

Handlooms and Textiles, Khadi and Village Industries Board, Boodhan and Gramadhan.

Tel.No :  044-25674234

Health, Medical Education and Family Welfare

Tel.No :  044-25672939

Commercial Taxes, Registration and Stamp Act, Weights and Measures, Debt Relief including legislation on Money lending, Chits and Registration of Companies

Tel.No :  044-25672232

Backward Classes Welfare, Most Backward Classes Welfare and Denofied Communities Welfare

Tel.No :  044-25672173

Hindu Religious and Charitable Endowments

Tel.No :  044-25670374

Finance, Planning, Human Resources Management, Pensions and Pensionary benefits.

Tel.No :  044-25679136

Milk and Dairy Development

Tel.No :  044-25672265

Minorities Welfare, Non Resident Tamils Welfare, Refugees & Evacuees and Wakf Board

Tel.No :  044-25670401

School Education

Tel.No :  044-25672574

Environment and Pollution Control, Youth Welfare and Sports Development

Tel.No :  044-25675099

Labour Welfare, Population, Employment and Training, Census, Urban and Rural Employment

Tel.No :  044-25673034

Information Technology

Tel.No :  044-25671512

Tourism and Tourism Development Corporation

Tel.No :  044-25672991

Adi Dravidar Welfare, Hill Tribes and Bonded Labour Welfare.

Tel.No :  044-25671021