I. Adi Dravidar and Tribal Welfare Department

II. Agriculture & Farmers Welfare Department

III. Animal Husbandry, Dairying, Fisheries and Fishermen Welfare Department

IV. BC, MBC & Minorities Welfare Department

V. Commercial Taxes and Registration Department

VI. Co-operation, Food and Consumer Protection Department

VII. Energy Department

I. Environment, Climate Change and Forests Department

II. Finance Department

III. Handlooms, Handicrafts, Textiles and Khadi Department

IV. Higher Education Department

V. Highways and Minor Ports Department

I. Housing and Urban Development Department

II. Human Resources Management Department

III. Industries, Investment Promotion & Commerce Department

IV. Information Technology and Digital Services Department

V. Labour Welfare and Skill Development Department

VI. Law Department

VII. Legislative Assembly Department

I. Home, Prohibition and Excise Department-High Court

II. Micro, Small and Medium Enterprises Department

III. Mudhalvarin Mugavari Department

IV. Municipal Administration and Water Supply Department

V. Natural Resources Department

VI. Planning, Development and Special Initiatives Department

VII. Public Department

VIII. Public(Elections) Department

I. Public Works Department

II. Revenue and Disaster Management Department

III. Rural Development and Panchayat Raj Department

IV. School Education Department

V. Social Reforms Department

VI. Social Welfare and Women Empowerment Department

VII. Special Programme Implementation

VIII. Health and Family Welfare Department

I. Home, Prohibition and Excise Department- Police Dept, etc..

II. Tamil Dev. and Information Department

III. Tourism, Culture and Religious Endowments Department

IV. Transport Department

V. Water Resources Department

VI. Welfare of Differently Abled Persons

VII. Youth Welfare and sports Development Department