TNUSRB SI Answer Key & Question Paper 2025: The Tamil Nadu Uniformed Services Recruitment Board (TNUSRB) successfully conducted the Sub-Inspector (SI) written examination on 21 December 2025 across multiple examination centers throughout Tamil Nadu for recruitment of 1,299 positions in Taluk and Armed Reserve forces. Over 3 lakh candidates appeared for this highly competitive exam held in multiple shifts starting from 10:00 AM onwards in offline OMR-based format.
The Tamil Nadu Uniformed Services Recruitment Board (TNUSRB) issued the official TNUSRB SI Answer Key 2025 PDF on December 26, 2025.
To ensure exam integrity, question papers were issued in four sets (A, B, C, D). Answer keys were released set-by-set for correct matching. The official TNUSRB SI Answer Key 2025 will be available as downloaded PDFs on tnusrb.tn.gov.in under the “Answer Keys” area around 5-10 days after the test.The official TNUSRB SI Answer Key 2025 is set to be posted soon on the TNUSRB website, tnusrb.tn.gov.in.
TNUSRB SI Exam 2025 Overview
| Item | Details |
|---|---|
| Recruitment Organization | Tamil Nadu Uniformed Services Recruitment Board (TNUSRB) |
| Examination Name | Sub-Inspector (SI) Taluk & Armed Reserve Police Recruitment 2025 |
| Total Vacancies | 1,299 (933 SI Taluk + 366 SI Armed Reserve) |
| Post Categories | SI Taluk, SI Armed Reserve (Open & Departmental Quota) |
| Written Exam Date | 21 December 2025 (Sunday) |
| Answer Key Release Date | 26th December 2025 |
| Raise Objections | 26th December 2025 to 2nd January 2026 |
| Exam Timing | 10:00 AM onwards (exact shift timing on admit card) |
| Examination Mode | Offline – Objective Type (Multiple Choice Questions) |
| Part 1: Tamil Eligibility Test | 100 questions, 100 marks, 100 minutes, Qualifying (40% minimum required) |
| Part 2: Main Written Exam | 160 questions (80 in Part A + 60 in Part B), 70 marks total, 150 minutes |
| Part 2 Composition | Part A – General Knowledge (40 marks); Part B – Psychology/Logical Reasoning (30 marks) |
| Question Type | Objective Type / Multiple Choice (Each question carries 0.5 marks) |
| Nature of Exam | Preliminary/Qualifying stage for further recruitment rounds |
| Official Website | tnusrb.tn.gov.in |
| Answer Key Portal | tnusrb.tn.gov.in (Answer Key section under Recruitment) |
| Marking Scheme | Each correct answer: 0.5 marks; Each wrong answer: -1/8 marks (negative marking applicable) |
TNUSRB SI Question paper and Answer Key 2025 Download Links (Set-Wise)
The official TNUSRB SI Answer Key 2025 download link activates on tnusrb.tn.gov.in under “Notifications > Answer Keys” section post-release. Candidates access set-wise PDFs (A/B/C/D) for both Part 1 & Part 2 without login credentials.
TNUSRB Police SI Answer Key 2025 PDF- Click to Download
Once the official TNUSRB SI Answer Key 2025 is released by the board, candidates will find organized download links for each question paper set:
| Question Paper Set | Un Official Answer Key | Official Download Source |
|---|---|---|
| Part 1 (Tamil Eligibility) – | Click Here | Link activation pending on official portal |
| Part 2 (Main Written Exam) – GK + Psychology | Click Here | Link activation pending on official portal |
Step to Download TNUSRB SI Answer Key 2025
Step 1: Visit Official TNUSRB Portal i.e. tnusrb.tn.gov.in in browser on release date (expected 26-30 Dec).
Step 2: Navigate to Answer Key Section, Click “Notifications” → “Answer Keys” or search “SI 2025 Answer Key” using Ctrl+F.
Step 3: Choose “Sub-Inspector Written Exam 2025” → “21 December 2025” from dropdown menus.
Step 4: Recall set letter (A/B/C/D) printed on your question booklet cover/OMR sheet top-right corner.
Step 5: Download Tamil Eligibility Test (Part 1) & Main Written (Part 2) separately as two PDFs.
Step 6: Open downloaded files; ensure header shows “TNUSRB SI 2025”, exam date, your set letter, total questions match (100+160).
Step 7: Take your OMR sheet; match bubbled answers against key question-by-question. Mark correct/wrong/unattempted
Step 8: Use marking scheme: Part 1 (+1/correct), Part 2 (+0.5 correct, -0.125 wrong). Note Part 1 qualifying cutoff (40/100).
Step 9: Store PDFs in “TNUSRB SI 2025” folder; print one set for manual calculation backup.
Step 10: Note objection dates displayed on same page; prepare documents for disputed questions.
How to Raise Objections to TN Police SI Answer Key 2025?
Candidates must submit their objections or representations in person during office hours (10 a.m. to 6 p.m.) or by mail to the following address so that they reach TNUSRB on or before January 2, 2026.
The IGP/Member Secretary,
Tamil Nadu Uniformed Services Recruitment Board,
Old COP office campus, Pantheon Road,
Egmore, Chennai – 600 008
TNUSRB SI Exam 2025 Answer Key (21st Dec 2025)
Session 1: 10:00 AM to 12:30 PM
This session includes General Studies (C Series), , and Psychology C Series
(91- 140)
| General Studies (C Series) | Psychology (C Series) | Psychology (C Series) | ||||
| Q. No | Answer | Q. No | Answer | Q. No | Answer | |
| 1 | B | English D Series (81 – 90) | 81 | D | 101 | A |
| 2 | C | 82 | D | 102 | C | |
| 3 | D | 83 | A | 103 | B | |
| 4 | B | 84 | D | 104 | A | |
| 5 | D | 85 | C | 105 | C | |
| 6 | D | 86 | B | 106 | B | |
| 7 | A | 87 | B | 107 | B | |
| 8 | A | 88 | B | |||
| 9 | B | 89 | B | |||
| 10 | A | 90 | D | |||
| 11 | D | Psychology C Series (91- 140) | 91 | A | ||
| 12 | B | 92 | C | |||
| 13 | B | 93 | C | |||
| 14 | B | 94 | A | |||
| 15 | C | 95 | D | |||
| 16 | A | 96 | C | |||
| 17 | C | 97 | A | |||
| 18 | D | 98 | D | |||
| 19 | B | 99 | D | |||
| 20 | B | 100 | C | |||
| 21 | C | |||||
| 22 | C | |||||
| 23 | D | |||||
| 24 | B | |||||
| 25 | A | |||||
| 26 | A | |||||
| 27 | C |
Session 2: 3:30 PM (Tamil Eligibility Test – D Series)
| Q. No | Answer | Q. No | Answer |
| 1 | C | 15 | B |
| 2 | D | 16 | C |
| 3 | A | 17 | A |
| 4 | C | 18 | A |
| 5 | C | 19 | D |
| 6 | D | 20 | A |
| 7 | D | 21 | C |
| 8 | B | 22 | C |
| 9 | A | 23 | D |
| 10 | B | 24 | C |
| 11 | A | 25 | C |
| 12 | C | 26 | A |
| 13 | C | 27 | C |
| 14 | D |
| General Studies (C Series) | 10 AM TO 12.30 PM | Psychology (C Series) | 10 AM TO 12.30 PM | Tamil (D Series) | 3.30 PM |
| Q. No | Answer | Q. No | Answer | Q. No | Answer |
| 28 | A | 108 | D | 28 | C |
| 29 | A | 109 | B | 29 | A |
| 30 | B | 110 | D | 30 | B |
| 31 | B | 111 | C | 31 | A |
| 32 | D | 112 | C | 32 | A |
| 33 | C | 113 | C | 33 | A |
| 34 | A | 114 | A | 34 | A |
| 35 | C | 115 | D | 35 | C |
| 36 | D | 116 | C | 36 | D |
| 37 | B | 117 | B | 37 | B |
| 38 | A | 118 | B | 38 | A |
| 39 | C | 119 | C | 39 | C |
| 40 | C | 120 | A | 40 | C |
| 41 | A | 121 | C | 41 | D |
| 42 | A | 122 | A | 42 | A |
| 43 | A | 123 | A | 43 | B |
| 44 | A | 124 | B | 44 | B |
| 45 | A | 125 | A | 45 | C |
| 46 | A | 126 | A | 46 | D |
| 47 | D | 127 | C | 47 | D |
| 48 | D | 128 | D | 48 | A |
| 49 | B | 129 | B | 49 | A |
| 50 | C | 130 | D | 50 | B |
| 51 | C | 131 | D | 51 | B |
| 52 | D | 132 | A | 52 | A |
| 53 | C | 133 | C | 53 | C |
| 54 | B | 134 | A | 54 | B |
| 55 | C | 135 | D | 55 | C |
| 56 | C | 136 | B | 56 | B |
| 57 | C | 137 | A | 57 | B |
Morning Session (10 AM TO 12.30 PM)
| General Studies (C Series) | Psychology (C Series) | ||
| Q. No | Answer | Q. No | Answer |
| 58 | A | 138 | A |
| 59 | A | 139 | C |
| 60 | C | 140 | C |
| 61 | B | ||
| 62 | C | ||
| 63 | A | ||
| 64 | B | ||
| 65 | A | ||
| 66 | B | ||
| 67 | A | ||
| 68 | A | ||
| 69 | D | ||
| 70 | D | ||
| 71 | A | ||
| 72 | B | ||
| 73 | B | ||
| 74 | B | ||
| 75 | D | ||
| 76 | A | ||
| 77 | C | ||
| 78 | D | ||
| 79 | B | ||
| 80 | B |
Afternoon Session (3.30 PM)
| Tamil (D Series) | Tamil (D Series) Continued | ||
| Q. No | Answer | Q. No | Answer |
| 58 | C | 73 | C |
| 59 | A | 74 | B |
| 60 | A | 75 | C |
| 61 | C | 76 | A |
| 62 | B | 77 | A |
| 63 | A | 78 | A |
| 64 | B | 79 | A |
| 65 | A | 80 | B |
| 66 | C | 81 | D |
| 67 | A | 82 | D |
| 68 | A | 83 | C |
| 69 | B | 84 | D |
| 70 | C | 85 | A |
| 71 | C | 86 | C |
| 72 | D | 87 | A |
தமிழ்தகுதித்ததர்வு (Tamil) D Series – 3.30 PM
| Q.no | Answers |
| 88 | C |
| 89 | B |
| 90 | B |
| 91 | B |
| 92 | B |
| 93 | A |
| 94 | A |
| 95 | C |
| 96 | D |
| 97 | C |
| 98 | C |
| 99 | B |
| 100 | D |
TNUSRB SI Exam Analysis 2025 Difficulty Level
The TNUSRB SI Exam Analysis 2025 Difficulty Level informs applicants about how difficult the question paper was overall. This study is based on exam-taker feedback and expert reviews. It also clarifies which portions took longer and which scored better. The table below shows the difficulty level of the TNUSRB SI Exam.
| Exam Part | Subject | Difficulty Level |
| Part A | General Knowledge | Easy to Moderate |
| Part B | Logical Analysis, Numerical Analysis, Psychology Test, Communication Skills, Information Handling Ability | Moderate |
| Overall | All Sections | Easy to Moderate |
Raise Objection For TNUSRB SI Answer Key 2025
Step 1: Identify Disputed Questions, note question numbers where official answer seems incorrect/ambiguous.
Step 2: Collect Authentic References, Gather NCERT/State Board textbooks, The Hindu clippings, standard reference books supporting alternate answer.
Step 3: Post-provisional key release, click “Raise Objection” link on tnusrb.tn.gov.in answer key page.
Step 4: Enter Application Number, DOB, Captcha; some require Registration ID from admit card.
Step 5: Choose Part (1/2), Question No., Your Answer, Official Answer, Correct Answer (your claim).
Step 6: Explain why official answer wrong (300 words max); mention textbook name, page no., edition.
Step 7: Scan reference pages (PDF/JPG <2MB each); maximum 3 documents per objection.
Step 8: Pay Objection Fee, ₹100 per question via Net Banking/Card/UPI; non-refundable even if rejected.
Step 9: Review & Submit, complete objection; submit before 5 PM last date. Note Acknowledgement ID.
Step 10: Login periodically to check objection status (Pending/Accepted/Rejected).
TNUSRB SI 2025 Marking Scheme
TNUSRB SI exam employs differential marking across parts to balance language proficiency with subject knowledge.
Part 1 (Tamil Eligibility) awards +1 mark per correct answer with no negative marking, encouraging maximum attempts while maintaining 40-mark qualifying threshold. Maximum score: 100 marks.
Part 2 (Main Written) implements +0.5 marks per correct answer with -0.125 marks (1/8th penalty) per wrong answer, discouraging blind guessing. Unattempted questions score zero. Part A (GK: 80 Qs = 40 marks), Part B (Psychology: 60 Qs = 30 marks). Total: 70 marks.
| Component | Part 1: Tamil Test | Part 2: Main Written Exam |
|---|---|---|
| Total Questions | 100 questions | 160 questions |
| Total Marks | 100 marks | 70 marks (Part A: 40, Part B: 30) |
| Marks per Correct Answer | +1 mark | +0.5 marks (half mark) |
| Marks per Incorrect Answer | 0 marks | -1/8 marks (-0.125) |
| Marks for Unanswered | 0 marks | 0 marks |
| Minimum Qualifying | 40 marks (40%) | 28 marks (40%) |
| Exam Duration | 100 minutes (1 hr 40 min) | 150 minutes (2 hrs 30 min) |
| Nature of Test | Qualifying only | Scoring (counted in merit) |
| Use of Marks | Eligibility screening | Merit list preparation |
How to Calculate Marks through the TNUSRB SI Answer Key 2025?
Part 1 Calculation (Simple):
Correct Answers × 1 = Total Score
Example: 75 correct → 75/100 (Pass: >40 required)
Part 2 Calculation (With Negative Marking):
Correct Answers × 0.5 – Wrong Answers × 0.125 = Net Score
Practical Example:
Part 2A (GK): 65 correct, 12 wrong, 3 unattempted
- Positive: 65 × 0.5 = 32.5
- Negative: 12 × 0.125 = 1.5
- Net Part 2A: 32.5 – 1.5 = 31/40
Part 2B (Psychology): 48 correct, 10 wrong, 2 unattempted
- Positive: 48 × 0.5 = 24
- Negative: 10 × 0.125 = 1.25
- Net Part 2B: 24 – 1.25 = 22.75/30
- Total Part 2: 31 + 22.75 = 53.75/70 (76.8%)
Final Merit Score Formula:
Part 2 (70) + Viva-Voce (10) + Special Marks (20) = 100