TNPSC CTS Syllabus 2026 PDF download link, exam pattern, subject-wise topics, marking scheme, and preparation tips. Check latest TNPSC Combined Technical Services syllabus for Paper 1 & 2 here.

Overview :

The Tamil Nadu Public Service Commission (TNPSC) has released the detailed syllabus for Combined Technical Services (CTS) Examination 2026. Candidates preparing for TNPSC CTS recruitment can download the official syllabus PDF, exam pattern, and marking scheme from this page. This guide covers subject-wise topics, preparation strategy, and important books for the TNPSC CTS exam.

Conducting Body	Tamil Nadu Public Service Commission (TNPSC)
Post Name	Assistant Engineer (Civil/Mech./Electrical), Environmental Scientist, Project Officer & Others
Total Vacancies	461 Posts
Exam Mode	Offline (OMR-based)
Exam Type	Objective (MCQ)
Number of Papers	2 (Paper I & Paper II)
Total Marks	Paper I: 150
Exam Duration	Paper I: 3 Hours
Negative Marking	1/3 Mark
Selection Process	Written Exam + Interview (for Interview Posts)
Exam Language	English / Tamil
Official Website	tnpsc.gov.in

Download Syllabus PDF :

Click Here to Download TNPSC CTS Syllabus PDF 2026

Exam Pattern :

Exam Pattern for Posts other than Translator (Non-Interview / Interview Posts)

Paper No.	Subject	No. of Questions	Total Marks	Duration
Paper – I	Tamil Eligibility Test	100	150	3 Hours
	General Studies	75
	Aptitude & Mental Ability Test	25
Paper – II	Subject Paper (Technical)	200	300	3 Hours

Important Points:

• Tamil Eligibility Test is qualifying in nature.
• Minimum qualifying marks required in Tamil Eligibility Test.
• Negative marking of 1/3 mark for wrong answers.
• Question papers available in English and Tamil.

Selection Process :

• Written Exam + Interview (for Interview Posts)

Subject Wise Syllabus :

1. Paper I: Tamil Eligibility Test

• Tamil Language Proficiency (SSLC Standard)
• Grammar, Vocabulary, Comprehension, etc.

2. General Studies

• Ancient, Medieval & Modern Indian History
• Physical, Indian & World Geography
• Indian Polity & Constitution
• Indian Economy, Planning & Schemes
• Physics, Chemistry & Biology (Science)
• Current Affairs (National & International)
• Sports, Culture, Awards, Important Days
• Tamil Nadu Specific GK

3. Aptitude & Mental Ability Test

• Analogies, Series Completion, Coding-Decoding
• Blood Relations, Direction Sense
• Logical Deduction, Syllogism
• Number Series, Ratio & Proportion
• Profit & Loss, Time & Work, Speed & Distance
• Data Interpretation, Percentage
• Visual Reasoning, Mirror Images

4. Paper II: Subject Specific (Technical Paper)

• Civil Engineering – Building Materials, Surveying, Strength of Materials, Structural Analysis, etc.
• Mechanical Engineering – Thermodynamics, Engineering Mechanics, Fluid Mechanics, etc.
• Electrical Engineering – Electrical Circuits, Machines, Power Systems, etc.
• Other technical subjects as per the post (Environmental Science, etc.)

Important Topics for Exam :

• Current Affairs (Last 6-12 months)
• Tamil Nadu Specific GK & Schemes
• Technical Subject (Core Engineering Topics)
• Aptitude – Data Interpretation, Percentage, Ratio
• General Studies – Polity, Economy & History

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