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TNPSC · CTS Diploma/ITI

TNPSC Syllabus Guide

டிஎன்பிஎஸ்சி பாடத்திட்ட வழிகாட்டி

How to read the official TNPSC syllabus, split subjects by stage, and avoid preparing from outdated patterns.

CTS Diploma/ITI guideOfficial website

Notification is final

This guide helps you prepare and navigate official links. Confirm the latest TNPSC notification before applying, paying fees, downloading hall tickets, or checking results.

Last Reviewed

14 May 2026

Review Cadence

Monthly

Authority

TNPSC official notification, syllabus, scheme, dashboard, and result pages are the final authority.

Related Study Links

Use these internal guides and practice pages when they match the paper or stage you are preparing for.

CTS Diploma/ITI

CTS Diploma/ITI exam pattern

Use the pattern to decide paper-wise time, marks, and mock-test strategy.

CTS Diploma/ITI

CTS Diploma/ITI previous papers

Map old questions to syllabus headings before starting full mock tests.

CTS Diploma/ITI

CTS Diploma/ITI books

Choose one main source per subject instead of collecting too many books.

CTS Diploma/ITI

CTS Diploma/ITI study plan

Turn the syllabus into a monthly and weekly preparation calendar.

Practice

TNPSC aptitude practice

Topic-wise timed practice for quantitative aptitude, reasoning, mental ability, and DI.

Aptitude

Percentage guide

Useful for marks, population, election, profit-loss, and DI questions.

Aptitude

Ratio and proportion guide

Core topic for arithmetic, mixtures, ages, partnership, and data interpretation.

Aptitude

Time and work guide

Important for work-rate, efficiency, pipes, and combined-work questions.

Reasoning

Reasoning practice

Practise coding-decoding, series, blood relations, direction sense, and arrangements.

How to Read the CTS Diploma/ITI Syllabus

TNPSC Syllabus Guide is part of TNPSC Combined Technical Services - Diploma / ITI Posts preparation. Use it with the active TNPSC notification, because the notification controls the exact syllabus, scheme, post list, age rules, fees, vacancies, reservation details, and document instructions.

Do not read the syllabus as a long list of subjects. Break it into daily checklist units under Trade subject, Diploma-level technical basics, General studies where notified, Tamil eligibility, Aptitude where notified. Each unit should end with previous-year questions or a short practice set so you know whether the topic is actually understood.

  • Mark every heading as pending, first reading done, revised, or tested.
  • Keep high-frequency previous-paper areas in a separate revision list.
  • Do not add extra topics unless they connect clearly to a syllabus heading.

Turning Syllabus into a Study Plan

A syllabus becomes useful only when it controls your timetable. Put heavier topics on longer study days, keep factual subjects in revision cycles, and reserve test days for mixed practice rather than fresh reading.

If the topic belongs to technical services, give more time to the core technical paper. If it belongs to Group I or Group II, maintain General Studies, Tamil eligibility, aptitude, and Tamil Nadu-specific topics together so one paper does not collapse while another improves.

CTS Diploma/ITI Syllabus Breakdown

The CTS Diploma/ITI syllabus should be read post-code first. The technical paper is usually the deciding area, but Tamil eligibility, General Studies, aptitude, and professional knowledge must be handled exactly as the active scheme says.

Paper or Stage
What to Study
Priority
How to Prepare
Post-specific technical paper
Engineering, diploma, ITI, science, agriculture, professional, or trade syllabus exactly matching the post code.
Highest priority for rank and eligibility fit.
Split units into formulas, definitions, diagrams, standards, procedures, and problem types.
General Studies or common paper
Tamil Nadu facts, polity, current affairs, science basics, and aptitude where included.
Medium to high depending on marks.
Use short GS cycles so the technical paper remains the main block.
Tamil eligibility
Tamil qualifying paper or language component where the notification includes it.
Compulsory if notified.
Practice steadily; do not treat it as optional because the paper may be qualifying.
Interview or document verification
Branch proof, registration, experience, equivalence, project/work exposure, and department context.
High after written stage.
Keep technical documents ready and prepare practical explanations in simple language.

High Priority

  • Trade subject
  • Diploma-level technical basics
  • General studies where notified
  • Exact post-code technical subject

Medium Priority

  • Tamil eligibility
  • Aptitude where notified
  • Current affairs linked to Tamil Nadu and the active exam stage
  • Mock-test analysis after first syllabus coverage

Do Not Skip

  • Tamil eligibility or language component where notified
  • Aptitude and mental ability if it appears in the scheme
  • Notification-specific document and qualification rules

Source Mapping

Do not attach every popular book to every topic. Use school books for foundations, official syllabus headings for boundaries, previous papers for priority, and one main source for deeper subject coverage.

  • Technical paper: use your core diploma/degree/ITI sources plus official syllabus units and previous technical questions.
  • Aptitude: use formula sheets, daily small practice sets, and mistake logs instead of only reading solved examples.
  • Tamil eligibility or General Tamil: use grammar, literature, author facts, and repeated previous-paper patterns.
  • Current affairs: maintain Tamil Nadu, India, economy, science, environment, and scheme notes in separate headings.
  • Official material: use notification, syllabus, scheme, previous papers, answer keys, and dashboard updates as final boundaries.

Time Plan

The syllabus should decide your calendar. Finish one clear first pass, then move into revision, previous papers, mixed tests, and final short notes.

  1. 1.Days 1-7: Read notification, print syllabus, identify paper/stage pattern, and mark eligibility or document risks.
  2. 2.Days 8-30: Complete the first pass of high-priority syllabus areas with short notes and topic-wise practice.
  3. 3.Days 31-60: Add medium-priority areas, previous-paper classification, current affairs revision, and weekly mixed tests.
  4. 4.Days 61-90: Shift into full mocks, error-log revision, repeated facts, formulas, Tamil practice, and document readiness.
  5. 5.Final 15 days: Stop collecting bulky new material; revise short notes, official instructions, hall-ticket rules, and repeated mistakes.

What to check first

  • Open the active notification and the TNPSC syllabus page before following any book or coaching plan.
  • Confirm whether the paper is SSLC, higher-secondary, degree, diploma, ITI, or technical-subject standard.
  • Separate Tamil eligibility, General Studies, Aptitude, and post-specific subject papers.

How to use the syllabus

  • Convert every syllabus unit into a checklist.
  • Mark PYQ frequency beside each unit after solving previous papers.
  • Revise high-fact areas weekly: Tamil Nadu history, polity, schemes, geography, and current affairs.

Official Links

notificationTNPSC notificationsresourceAnnual plannersyllabusSyllabusresourceScheme of examinationresourceExam dashboardresourcePrevious year question papers