NIMI/NCVT ITI Trade Exam (AITT): Complete Guide to CBT Pattern, Eligibility and Preparation

Quiz NIMI ITI Trade Mock Test

A Complete Guide to Preparing for the NIMI/NCVT ITI Trade Exam (AITT)

If you are training at an Industrial Training Institute (ITI) in Electrician, Fitter, Welder, COPA, or any other trade under the Craftsman Training Scheme (CTS), the exam that decides whether you qualify is the All India Trade Test (AITT). It is conducted under the National Council for Vocational Training (NCVT) framework, administered through the Directorate General of Training (DGT), with question papers and official practice material prepared by the National Instructional Media Institute (NIMI). If you are instead training to become a trade instructor under the Craft Instructor Training Scheme (CITS), you sit a parallel assessment that follows the same CBT logic but tests you at an instructor level.

What the NIMI/NCVT ITI Trade Exam Actually Is

In recent years, the trade theory, workshop calculation and science, engineering drawing, and employability skills papers have moved to a Computer Based Test (CBT) format at most ITIs, replacing the older pen-and-paper exam for these components. Practical/trade practical assessment generally continues to be conducted hands-on at the institute, often along with viva voce. Understanding how the CBT portion is structured — and practising it in the same format — is one of the most useful things a trainee can do before appearing for the real test.

Who Conducts It and Why It Matters

NIMI is a society set up to produce standard instructional material, question banks, and learning resources for the ITI/vocational training ecosystem, working under the umbrella of NCVT and DGT. The actual certification — the National Trade Certificate (NTC) for CTS trainees, or the instructor-level certificate for CITS — is awarded by NCVT once you clear the AITT. In practical terms, this means the mock questions you practise with should mirror NIMI’s official question bank style and the CBT interface trainees actually see on exam day, rather than generic multiple-choice questions pulled from unrelated sources.

Eligibility

For CTS trades, you typically need to have completed your prescribed training duration at a recognised ITI (durations vary by trade, commonly one or two years), with minimum sessional marks and attendance requirements set for each semester — institutes generally expect at least 60% sessional marks and around 80% attendance per semester before clearing you to sit the AITT. Entry into the ITI course itself usually requires a pass in Class 10 (with Science and Mathematics preferred for engineering trades), though a few trades admit Class 8 pass candidates — the exact entry qualification depends on the trade and the state’s ITI admission rules.

For CITS, eligibility is different and instructor-focused: candidates generally need a National Trade Certificate (NTC) or equivalent NCVET-recognised qualification in the relevant trade, or a diploma/degree from a recognised technical board or university, along with a minimum age requirement (commonly 18 years as on the first day of the academic session). If you are unsure which category you fall under, your ITI or NSTI (National Skill Training Institute) will confirm it during registration on the NCVT-MIS / Skill India Digital Hub portal.

Exam Format: What the CBT Actually Looks Like

Based on official AITT guidelines published by DGT, the CBT paper for trade theory-related subjects generally runs for two hours and carries 150 marks across 75 questions (2 marks per question), split as follows:

• Engineering trades: Trade Theory (38 questions) + Workshop Science and Calculation (6 questions) + Engineering Drawing (6 questions) together make up 100 marks, and Employability Skills (25 questions) makes up the remaining 50 marks.
• Non-engineering trades: Trade Theory alone (50 questions) makes up 100 marks, and Employability Skills (25 questions) makes up 50 marks.

The minimum qualifying mark is commonly set at 33% in both the Trade Theory-related paper and the Employability Skills paper separately — so you need to clear each section on its own, not just the combined total. Alongside the CBT paper, trade practical is assessed separately (hands-on work at your institute) and contributes its own marks toward your final result; check your institute’s notice board or the NCVT-MIS portal for the exact weightage applicable to your trade and session, since this can vary.

AITT sessions are generally scheduled after each semester/year of training is completed, with exact dates announced by DGT and your state’s training directorate — these schedules do shift from year to year, so always confirm your specific exam date through your institute rather than relying on a fixed calendar.

Fees, Results, and Validity

Exam fees for AITT are collected through your ITI/NSTI as part of the registration process on the NCVT-MIS system; the amount is nominal but can vary slightly by state and trade, so it’s best confirmed directly from your institute at the time of registration rather than assumed in advance. Results are typically declared through the NCVT-MIS portal a few weeks after the exam. Once you pass, the National Trade Certificate (for CTS) or instructor certification (for CITS) is a recognised, standing qualification — it is not something you need to renew periodically, unlike some licences.

If You Don’t Clear It

If you don’t clear the Trade Theory or Employability Skills section (or the practical), you are generally permitted to reappear as an ex-trainee in a subsequent AITT cycle for the paper(s) you did not clear, following the reappear/ex-trainee process notified by DGT/your state directorate for that session. Carrying forward only the failed component (rather than repeating everything) is usually how this works, but the exact reappear rules and any associated fee are set out in each cycle’s official guidelines, so it is worth reading the latest circular from your institute before assuming how it applies to you.

How to Actually Prepare

1. Get comfortable with the CBT interface itself. Many trainees lose time on exam day simply navigating a computer-based interface for the first time. Practising trade-specific MCQs in a simulated CBT format — the same style of question bank NIMI uses — removes that surprise factor.
2. Work section-wise, not just overall. Since Trade Theory and Employability Skills need to be cleared separately, track your accuracy in each section individually rather than looking only at your combined score.
3. Don’t neglect Employability Skills. Trainees often over-focus on trade theory and under-prepare for the Employability Skills paper, even though it carries 50 of the 150 marks and must be cleared on its own.
4. Revise Workshop Science & Calculation and Engineering Drawing fundamentals if you’re in an engineering trade — these are smaller sections by question count but still require dedicated practice, especially formula-based and drawing-interpretation questions.
5. Time yourself. With 75 questions in two hours, pacing matters. Repeated timed mock attempts help you find a rhythm instead of running out of time on the real paper.
6. Re-attempt questions you got wrong. Treat every mock test as a diagnostic — note the trade-theory topics where you’re consistently weak and go back to your NIMI instructional material or textbook for those specific areas before your next practice round.

A well-structured mock test that mirrors the real CBT format — trade-specific questions, section-wise scoring, and realistic timing — is one of the most practical ways to walk into your AITT exam hall with fewer surprises and more confidence, whatever your trade.