Intelligence Bureau Assistant Central Intelligence Officer (IB ACIO Grade II) 2026: Official Notification, Pattern, Syllabus & Mock Tests
Prestigious national recruitment for Assistant Central Intelligence Officer Grade-II / Executive (Group 'C' Non-Gazetted, Non-Ministerial) in the Intelligence Bureau, India's premier internal intelligence agency.
Examination Overview
Prestigious national recruitment for Assistant Central Intelligence Officer Grade-II / Executive (Group 'C' Non-Gazetted, Non-Ministerial) in the Intelligence Bureau, India's premier internal intelligence agency.
| Exam Name | Intelligence Bureau Assistant Central Intelligence Officer (IB ACIO Grade II) |
|---|---|
| Conducting Authority | Intelligence Bureau (IB), Ministry of Home Affairs |
| Exam Level | National |
| Frequency | Periodic |
| Mode of Examination | Computer Based Test (CBT) / Written Examination |
| Language of Exam | English, Hindi & State Regional Languages |
| Official Website | https://mha.gov.in/ ↗ |
Important Dates & Events
Timeline confirmed from official notices issued by Intelligence Bureau (IB), Ministry of Home Affairs.
| Event / Milestone | Important Date / Status |
|---|---|
| Official Notification | Periodic Annual Cycle |
| Tier-I CBT Examination | Scheduled per recruitment drive |
| Tier-II Descriptive Exam | Post Tier-I Results |
| Interviews & Psychometric Test | Designated IB Centres |
Exam Pattern & Marking Scheme
Tier-I Exam: 100 Qs, 100 Marks, 60 Mins (Current Affairs 20 Qs, General Studies 20 Qs, Numerical Aptitude 20 Qs, Reasoning 20 Qs, English 20 Qs. Negative marking: 0.25). Tier-II: Descriptive Paper (50 Marks, 1 Hour: Essay 30 M, English Comprehension & Précis 20 M). Tier-III: Interview (100 Marks).
| Examination Parameter | Scheme Details | Remarks / Evaluation |
|---|---|---|
| Question Format | Multiple Choice Questions (Objective MCQs) | 4 or 5 options per question |
| Evaluation Mode | Computer Based Test (CBT) / Offline OMR Sheet | Centralized Evaluation System |
| Negative Marking Scheme | Standard 1/3rd or 1/4th negative deduction | Penalized for incorrect responses |
| Language Medium | Bilingual (English & Hindi) + Regional State Languages | Language toggle available in CBT |
| Normalization | Equipercentile or Percentile method across shifts | Multi-shift normalization applied |
Selection Process & Stages
Candidate progression through sequential recruitment tiers:
Preliminary / Tier 1 Examination
Comprehensive objective screening test covering core aptitude, reasoning, general knowledge and language skills.
Mains / Tier 2 / Skill Test
Advanced written assessment or post-specific technical/descriptive examination determining the final merit order.
Document Verification & Medical
Scrutiny of original certificates, category credentials, age proofs and required medical fitness examination.
Eligibility Criteria (Age & Educational Qualification)
Graduation in any discipline from a recognized university. Knowledge of computers is desirable. Age Limit: 18 to 27 years with relaxations for SC/ST (5 yrs) and OBC (3 yrs).
| Parameter | Eligibility Condition | Relaxation Norms |
|---|---|---|
| Educational Criteria | Graduation in any discipline from a recognized university. Knowledge of computers is desirable. Age Limit: 18 to 27 years with relaxations for SC/ST (5 yrs) and OBC (3 yrs). | Recognized Board / University required |
| Age Requirement | As specified in official notification (General Category) | SC/ST: +5 Years | OBC: +3 Years | PwD: +10 Years |
| Citizenship | Citizen of India | Subject of Nepal/Bhutan as per Central/State rules |
| Language Proficiency | Regional / English & Hindi working knowledge | Applicable as per State / National jurisdiction |
Detailed Syllabus by Subject
Current Affairs, Indian History, Geography, Polity, Science & Tech, Quantitative Aptitude, Logical Reasoning, English, and Essay Writing on security/geopolitical topics.
📖 General Studies & Current Affairs
- Current National & International Events
- Indian History & Freedom Struggle
- Indian & World Geography
- General Science (Physics, Chemistry, Biology)
- Indian Polity, Constitution & Governance
- Basic Economic Concepts & Budget Highlights
🔢 Quantitative & Numerical Aptitude
- Simplification, Number System, HCF & LCM
- Percentage, Ratio & Proportion, Profit & Loss
- Simple & Compound Interest
- Time, Speed & Distance, Time & Work
- Data Interpretation (Tables, Bar & Pie Charts)
🧩 Reasoning & Mental Ability
- Analogies, Classification & Series Completion
- Coding-Decoding & Blood Relations
- Direction Sense Test & Ranking Order
- Syllogisms, Statements & Assumptions
- Non-Verbal Reasoning & Figure Counting
📝 Language Comprehension
- Reading Comprehension Passages
- Vocabulary, Synonyms & Antonyms
- Grammar, Error Spotting & Sentence Correction
- Cloze Test, Idioms & Phrases
- One Word Substitutions & Spelling Check
Preparation Strategy & Cut-Off Trends
Historical scoring benchmarks and safe score targets for Intelligence Bureau Assistant Central Intelligence Officer (IB ACIO Grade II) based on competitive trends:
| Category | Safe Target Percentage | Preparation Focus | Benchmark Accuracy |
|---|---|---|---|
| General (UR) | 75% - 82% | Speed + Negative Control in Reasoning & Quant | 90%+ Accuracy |
| OBC / EWS | 70% - 76% | High Scoring in Current Affairs & Language | 88%+ Accuracy |
| SC / ST | 62% - 70% | Syllabus Coverage & Previous Year Papers | 85%+ Accuracy |
| PwD / Ex-SM | 55% - 65% | Sectional Cut-Off clearance + Accuracy | 82%+ Accuracy |
Official Mock Test Series & CBT Practice
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