Tamil Nadu Public Service Commission (TNPSC) has released TNPSC Field Assistant Syllabus 2025 along with the official notification on its official website. The syllabus is as per the exam pattern, so it helps candidates know exactly what to study. As we know, the exam is scheduled to be conducted on 16th December 2025. Those preparing for the Combined Technical Services (ITI) Level exam for Field Assistant can check the subject-wise topics mentioned in the article and start their preparation accordingly.
TNPSC Field Assistant Syllabus and Exam Pattern 2025
Under TNPSC Field Assistant Recruitment 2025, a total of 1794 vacancies have been announced for the post. The selection process consists of a Written Exam followed by Document Verification. To do well in the exam, candidates must know the TNPSC Field Assistant Syllabus and exam pattern for 2025 which cover subjects like Tamil, General Studies, Aptitude & Mental Ability, and Trade subject (ITI level).
| TNPSC Field Assistant Syllabus and Exam Pattern 2025- Summary | |
| Conducting Body | Tamil Nadu Public Service Commission (TNPSC) |
| Post name | Field Assistant |
| Vacancy | 1794 |
| Exam Date | 16th November 2025 |
| Total Questions | 400 |
| Total marks | 450 |
| Duration | 3 hours each paper |
| Negative Marking | 0.25 mars |
| Selection Process | Written Exam and Document Verification |
| Official website | https://tnpsc.gov.in/ |
TNPSC Field Assistant Exam Pattern 2025
The exam pattern for TNPSC Field Assistant is as follows:
- There will be 200 questions from will be asked for 100 marks from Tamil Language, General Studies, Aptitude, and Mental Ability
- There will be a second paper of 200 questions for 300 marks, based on Trade-Specific Knowledge
- The duration of the exam is 3 hours for both papers.
- 0.25 marks will be subtracted for an incorrect attempt.
| Paper | Subjects | Questions | Marks | Duration |
|---|---|---|---|---|
| Paper I | Part A: Tamil | 100 | 150 | 3 Hours |
| Part B: General Studies | 75 | |||
| Part C: Aptitude & Mental Ability | 25 | |||
| Paper II | Trade Subject (Electrician/Wireman – ITI Level) | 200 | 300 | 3 Hours |
| Total | 400 | 450 | 6 hours | |
TNPSC Field Assistant Syllabus 2025
The Tamil Nadu Public Service Commission (TNPSC) has shared a detailed list of subject-wise topics as mentioned in the TNPSC Field Assistant Syllabus 2025. Candidates should study these topics and use them to prepare effectively for the exam, following the exam pattern provided.
General Science (5 Questions)
- Universe
- Measurement
- Motion
- Force
- Energy
- Mechanics
- Electricity
- Magnetism
- Light
- Sound
- Heat
- Life Science
- Genetics
- Health
- Diseases
- Environment
- Inventions
- Current Affairs
Geography (5 Questions)
- Earth
- Physical Features
- Monsoon
- Rainfall
- Climate
- Rivers
- Soil
- Minerals
- Agriculture
- Transport
- Communication
- Population
- Disaster Management
- Environment
- Climate Change
- Landmarks
- Current Affairs
History & National Movement (10 Questions)
- Indus Valley
- Guptas
- Delhi Sultans
- Mughals
- Marathas
- South Indian History
- National Renaissance
- Freedom Struggle
- Leaders: Gandhi, Nehru, Ambedkar, Subhash Bose, Women Leaders
- Indian Culture
- Unity in Diversity
Indian Polity (15 Questions)
- Constitution
- Preamble
- Fundamental Rights & Duties
- Union & State Governments
- Local Bodies
- Federalism
- Elections
- Judiciary
- RTI
- Anti-Corruption
- Human Rights
- Political System in India & Tamil Nadu
- Current Affairs
Indian Economy & Tamil Nadu Development (20 Questions)
- Indian Economy
- Five-Year Plans
- NITI Aayog, RBI, GST
- Employment
- Agriculture
- Industrial Growth
- Social Problems
- Welfare Schemes
- Health
- Education
- Current Socio-Economic Issues
- Current Affairs
History, Culture & Movements of Tamil Nadu (20 Questions)
- Tamil Society
- Archaeological Discoveries
- Sangam Literature
- Thirukkural
- Tamil Nadu in Freedom Struggle
- Role of Women
- Social Reformers
- Reform Movements
- Socio-Political Transformation
Aptitude (15 Questions)
- Simplification
- Percentage
- HCF, LCM
- Ratio and Proportion
- Simple & Compound Interest
- Area, Volume, Time and Work
Reasoning (10 Questions)
- Logical Reasoning
- Puzzles
- Dice
- Visual Reasoning
- Alpha-Numeric Reasoning, Number Series
Paper II – Trade: Electrician and Wireman (ITI Standard)
Unit I: Safety Rules & Handling Tools (10 Questions)
- Safety signs, electrical hazards.
- Rescue, first aid.
- Protective equipment.
- Care of tools and fire safety.
Unit II: Fundamentals of Electrical & Electronics (20 Questions)
- Basics of electricity, laws (Ohm, Kirchhoff).
- Series, parallel circuits, AC/DC systems.
- Active/reactive power.
- Electronics components like transistors.
Unit III: Electrical Machines (15 Questions)
- DC and AC machines: generators, motors.
- Construction, working, maintenance.
Unit IV: Transformers (20 Questions)
- Working principle, types, efficiency.
- Testing and maintenance.
- Cooling and protective devices.
Unit V: Measuring Instruments, Lighting (20 Questions)
- Instruments: ammeter, voltmeter, energy meter, etc.
- Illumination concepts and types of lamps.
Unit VI: Power Generation (20 Questions)
- Conventional & renewable energy sources.
- Thermal, nuclear, hydel, solar, wind power basics.
Unit VII: Transmission & Distribution (30 Questions)
- Transmission lines and voltages.
- Poles, conductors, insulators.
- Substations, circuit breakers, earthing.
- Indian Electricity rules.
Unit VIII: Cells and Batteries (15 Questions)
- Electrolysis laws.
- Types of cells, lead acid battery.
- Charging and maintenance.
Unit IX: Control Panels & Wiring Systems (25 Questions)
- Control panels, relays, circuit breakers.
- Domestic wiring, earthing, safety rules.
- Wiring estimation and testing.
Unit X: Underground Cables, Conductors, Insulators (25 Questions)
- UG cable types, construction, and standards.
- Cable testing, fault detection.
- Properties of conductors and insulators.
