Positions fall under different levels of the pay matrix in the state government rules:

• Level 20 (approx. ₹37,700 - ₹1,38,500 base scale): Assistant Geologist, Assistant Engineer, Agriculture Officer, Horticultural Officer, Assistant Director, Junior Architect, Assistant Manager.
• Level 19: Assistant Accounts Officer
• Level 18: Research Assistant
• Level 17: Junior Scientific Officer, Assistant Superintendent, Assistant Engineer (Civil - SIPCOT)
• Level 16: System Manager, Translator
• Level 15: Librarian
• Level 13: Statistical Assistant, Deputy Manager (Dairying)
• Level 12: Assistant Engineer (Mechanical - Magnesites)
• Level 11: Assistant Archaeological Officer, Assistant Tourist Officer
• Level 10: Assistant Statistical Investigator, Block Health Statistician
• Level 9: Junior Photographer
• Level 8: Assistant Librarian, Assistant Warehouse Manager
• Junior Chemist: ₹39,800 - ₹1,26,500
• Assistant General Manager / Regional Manager: ₹28,480 - ₹90,570

Candidates must have completed 21 years of age as on 01.07.2026.

Maximum Age Limit (For 'Others' / Unreserved Category):

• Most Technical/Engineering Posts: 32 years
• Junior Photographer: 42 years
• Assistant Engineer (Industries): 37 years
• System Manager: 35 years
• Junior Scientific Officer, Assistant Accounts Officer, Assistant Engineer (Civil - SIPCOT), Assistant Geologist (Water Resources): 50 years

Maximum Age Limit (For SCs, SC(A)s, STs, MBCs/DCs, BC(OBCM)s, and BCMs):

• No Maximum Age Limit for the majority of the posts (up to 60 years at the time of selection), with minor exceptions for specific corporation/board posts.

Candidates must possess adequate knowledge of Tamil on the date of notification.

Educational Qualifications (Post-Specific Summary):

• Assistant Engineer (Civil/Electrical/Mechanical): B.E. / B.Tech in the relevant discipline.
• Assistant Engineer (Agricultural Engineering): B.E. (Agriculture) / B.Tech (Agricultural Engineering) or alternative relevant engineering disciplines if agricultural candidates are not available.
• Agriculture Officer (Extension) / Horticultural Officer: Bachelor's degree in Agriculture (B.Sc. Agriculture) / Horticulture (B.Sc. Horticulture) respectively.
• Assistant Geologist: M.Sc. degree in Geology or Applied Geology or Hydrogeology.
• Drug Inspector: Degree in Pharmacy, Pharmaceutical Sciences, or Medicine with specialization in Clinical Pharmacology or Microbiology.
• Block Health Statistician / Assistant Statistical Investigator: Degree in Statistics, Mathematics, or Economics.
• Junior Architect: Degree in Architecture with valid Council of Architecture registration.
• System Manager / Assistant Manager (IT): B.E./B.Tech in CSE/IT/ECE/EEE or MCA or M.Sc. CS/IT.

One Time Registration (OTR) Fee: ₹150 (Valid for 5 years)
Examination Fee: ₹100 per subject paper opted.

Fee Exemptions & Concessions:

• Scheduled Castes (SC/SCA) & Scheduled Tribes (ST): Full Exemption
• Persons with Benchmark Disability (PwBD) & Destitute Widows: Full Exemption
• Most Backward Classes (MBC/DC) & Backward Classes (BC/BCM): 3 Free Chances
• Ex-Servicemen: 2 Free Chances

• Selection Procedure: Single-stage Written Examination (consisting of Paper I and Paper II), followed by Onscreen Certificate Verification, Physical Certificate Verification, and Counselling.
• Paper I Structure: Part A covers the Tamil Eligibility Test (100 questions, 150 marks, minimum 40% / 60 marks required to qualify). Part B covers General Studies (75 questions) and Part C covers Aptitude and Mental Ability (25 questions).
• Paper II Structure: Subject Paper featuring 200 questions (300 marks) mapped to the specific degree/technical standard of the chosen post.
• Examination Centers: Conducted across 38 specific district venues in Tamil Nadu.
• Banned Items: Calculators, books, logs, mobile phones, smartwatches, or any electronic communication and storage devices are strictly prohibited in the exam hall.