Table of Contents
TNPSC CTS Non-Interview Posts Answer Key 2026 PDF Download below! The Tamil Nadu Public Service Commission (TNPSC) has released the tentative answer keys for the Combined Technical Services Examination (Non-Interview Posts) 2026. The keys were hosted on the official website on 7 October 2026. Candidates who appeared in the exam can now check their answers and, if needed, challenge the keys online. The last date to submit objections is 14 October 2026, 5:45 PM.
This guide covers the TNPSC CTSE Non-Interview Posts answer key 2026: exam dates, all 32 subjects with subject codes, how to download the key, how to raise objections, and the important rules to follow.
TNPSC CTSE INTREVIEW POSTS ANSWER KEY
TNPSC CTS Non-Interview Posts Answer Key 2026: Subject-Wise Answer Key for All 32 Subjects
Key challenge links are provided for each subject on the TNPSC website. Pick the subject code of the paper you attempted.
| S No. | Subject | Subject Code | Answer key PDF |
|---|---|---|---|
| 1 | Agricultural, Mechanical, Automobile and Civil Engineering | 562 | |
| 2 | Agriculture | 491 | |
| 3 | Agriculture, Chemistry, Zoology and Botany | 518 | |
| 4 | Archaeology | 420 | |
| 5 | Archaeology, Epigraphy, Heritage Management and Museology | 421 | |
| 6 | Architecture | 401 | |
| 7 | Basics of Engineering | 422 | |
| 8 | Business Administration | 385 | |
| 9 | Civil Engineering | 398 | |
| 10 | Computer Science, Information Technology, Electrical, Electronics and Communication Engineering | 554 | |
| 11 | Criminology, Forensic Science, Psychology and Philosophy | 571 | |
| 12 | Dairy Science, Dairy Technology, Food Technology, Food Processing | 579 | |
| 13 | Electrical and Electronics Engineering | 400 | |
| 14 | Electrical, Electronics and Communication Engineering | 514 | |
| 15 | Environmental and Chemical Engineering | 393 | |
| 16 | Environmental Science, Biology and Chemistry | 557 | |
| 17 | Evaluation and Applied Research | 607 | |
| 18 | Financial and Cost Accountancy (Final) | 434 | |
| 19 | Financial and Cost Accountancy Intermediate | 433 | |
| 20 | Geology | 395 | |
| 21 | Horticulture | 493 | |
| 22 | Industrial Safety and Health | 515 | |
| 23 | Library and Information Science | 594 | |
| 24 | Mechanical, Production and Manufacturing Engineering | 399 | |
| 25 | Pharmacy, Clinical Pharmacology and Micro Biology | 516 | |
| 26 | Physics, Chemistry, Biology, Computer Science and Forensic Science | 575 | |
| 27 | Statistics and Mathematics (PG Degree) | 506 | |
| 28 | Statistics, Mathematics and Economics | 504 | |
| 29 | Tamil Eligibility Test, General Studies, Aptitude and Mental Ability | 503 | |
| 30 | Town Planning, Civil Engineering and Architecture | 560 | |
| 31 | Travel and Tourism | 597 | |
| 32 | Visual Communication | 477 |
TNPSC CTSE Non-Interview Posts Answer Key 2026: Highlights
| Particulars | Details |
|---|---|
| Conducting body | Tamil Nadu Public Service Commission (TNPSC) |
| Exam name | Combined Technical Services Examination (Non-Interview Posts) |
| Exam dates | 16.08.2026 FN to 20.08.2026 FN & AN, 07.09.2026 FN & AN to 12.09.2026 AN, and 19.09.2026 FN & AN |
| Tentative answer key released on | 07/10/2026 |
| Mode of objection | Online only |
| Official website | www.tnpsc.gov.in |
| Objection window | Within 7 days of release |
| Last date and time to challenge | 14 October 2026, 5:45 PM |
Crack TNPSC with Entri's Expert-Led Coaching
Get live batches, expert mentorship, and comprehensive study materials to build a strong foundation for TNPSC exams. Join Entri and start your preparation today.
Enroll Now!What Is the TNPSC CTSE Non-Interview Posts Tentative Answer Key 2026?
The tentative answer key is the commission’s provisional list of correct answers. TNPSC has hosted a specimen question booklet in which the right answer is tick-marked against the correct choice for every question. Candidates compare their own responses with it to estimate their score.
Since the key is tentative, candidates can object. All objections and views received with evidence are placed before an Expert Committee, which finalises the answer keys.
How to Check the TNPSC CTSE Non-Interview Posts Answer Key 2026
- Visit the official website, www.tnpsc.gov.in.
- Open the answer key notice for Combined Technical Services Examination (Non-Interview Posts).
- Find your subject and subject code in the list.
- Click the link under the key challenge column to open the specimen question booklet with the tick-marked answers.
- Match your responses question by question.
- Count your correct and wrong answers and apply the marking scheme to estimate your score.
TNPSC CTS Non-Interview Posts Important Rule: Use the Specimen Booklet Question Number
Whatever code was printed on the question booklet you received in the exam hall, you can challenge answers only according to the question number in the Specimen Question Booklet on the TNPSC website. Map each question to the specimen booklet number before you file an objection.
TNPSC CTS Non-Interview Posts 2026 – Special Instruction for Paper I, Part A (Questions 35 to 39)
In Part A of Paper I, Questions 35 to 39 must be challenged with reference to the paragraph given above Question No. 35. Mention that passage in your representation if you object to any of these questions.
Crack TNPSC with Entri's Expert-Led Coaching
Get live batches, expert mentorship, and comprehensive study materials to build a strong foundation for TNPSC exams. Join Entri and start your preparation today.
Enroll Now!How to Challenge the TNPSC CTS Non Interview Posts Answer key 2026
- Submit your representation in online mode only, through www.tnpsc.gov.in.
- Submit it within seven days of the key release.
- The deadline is 5:45 PM on 14 October 2026. Online representations after this time receive no attention.
- Representations sent by post or email are not considered.
- Attach evidence for each objection, since objections received with evidence go to the Expert Committee.
Tips for a Strong Objection
- Quote the exact question number from the specimen booklet.
- State which option you believe is correct and why.
- Support your claim with a reliable source such as a standard textbook.
- Keep each objection short and specific to one question.
- Do not wait for the last day, since the portal can be busy near the deadline.
What Happens After You Submit Objections Against TNPSC CTS Non Interview Posts Answer Key 2026?
The Expert Committee reviews all objections received with evidence and finalises the answer keys. Check the official website for further updates from the commission.
How to Estimate Your Score – TNPSC CTS Non Interview Posts 2026
Count the questions you answered correctly using the tick-marked specimen booklet, then apply the marking scheme given in the exam notification, including any negative marking. Treat the result as an estimate, because the key is tentative and may change after review.
Prepare for the Next TNPSC Exam with Entri
Whether you are waiting for results or planning your next attempt, regular practice makes the difference. The Entri app offers TNPSC-focused courses, mock tests, daily current affairs and study material for Tamil Nadu competitive exams. Download the Entri app and keep your preparation going.
