Public, Indian Administrative Service, Indian Police Service, Indian Forest Service, General Administration, District Revenue Officers, Police and Home
Finance , Planning, Legislative Assembly, Elections and Passports, Personnel and Administrative Reforms, Personnel and Administrative Reforms(Training)
Public Works, Irrigation including Minor Irrigation, Programme Works, Highways and Minor Ports
Co-operation, Statistics and Ex-Servicemen Welfare
Electricity,Non-Conventional Energy Development, Prohibition and Excise, Molasses and Prevention of Corruption Act
Municipal Administration, Rural Development, Panchayats and Panchayat Unions, Poverty Alleviation Programmes, Rural Indebtedness, Urban and Rural Water Supply, Implementation of Special Programme
Fisheries and Fisheries Development Corporation
Law, Courts and Prisons
Higher Education including Technical Education, Electronics, Science and Technology.
Social Welfare including Women's and Children's Welfare, Orphanages and Correctional Administration, Integrated Child Development and Beggar Homes, Welfare of the Differently Abled and Social Reforms and Nutritious Noon Meal Programme
Industries, Steel Control, Mines and Minerals and Special Initiatives
Environment and Pollution Control
Food, Civil Supplies, Consumer Protection and Price Control
Handlooms and Textiles
Housing, Rural Housing and Housing Development, Slum Clearance Board and Accommodation Control, Town Planning, Urban Development and Chennai Metropolitan Development Authority
Health, Medical Education and Family Welfare
Milk and Dairy Development
Agriculture, Agricultural Engineering, Agro Service Cooperatives, Horticulture, Sugarcane Cess, Sugarcane Development and Waste Land Development
Information and Publicity, Flim Technology and Cinematograph Act, Stationery and Printing and Government Press
Revenue, District Revenue Establishment,. Deputy Collectors, Weights and Measures, Debt Relief including Legislation on Money lending, Chits, Registration of Companies.
Rural Industries including Cottage Industries, Small Industries
Commercial Taxes, Registration and Stamp Act
School Education, Archaeology, Youth Welfare and Sports Development Department
Tourism, Tourism Development Corporation
Labour, Population, Employment and Training, Newsprint Control, Census and Urban and Rural Employment and Wakf Board
Transport ,Nationalised Transport and Motor Vehicles Act
Adi Dravidar Welfare, Hill Tribes and Bonded Labour.
Khadi and Village Industries Board, Bhoodhan and Gramadhan.
Hindu Religious and Charitable Endowments and Tamil Official Language and Tamil Culture
Backward Classes, Most Backward Classes and Denotified Communities, Overseas Indians, Refugees and Evacuees and Minorities Welfare.