August 26, 2025
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IB ACIO Syllabus 2025 – Section-Wise Breakdown
If you’re planning to crack the IB ACIO Exam 2025, knowing the IB ACIO syllabus 2025 inside out is your first step to success. This exam tests candidates on various levels – from numerical logic to current affairs – and understanding the detailed syllabus can help you build a focused study strategy.
Whether you’re just starting out or revising before the final exam, this blog will walk you through the section-wise IB ACIO Syllabus 2025, including Quantitative Aptitude, Reasoning, General Studies, and English Language.
IB ACIO Tier I Syllabus 2025
IB ACIO Syllabus 2025 – Quantitative Aptitude
| Quantitative Topics |
|---|
| Number Systems |
| Percentages |
| Mensuration |
| Ratio and Time |
| Average |
| Profit and Loss |
| Decimals & Fractions |
| Simple & Compound Interest |
| Time and Distance |
| Time and Work |
| LCM and HCF |
| Algebra |
| Statistics |
| Operations Research |
| Calculus & Real Analysis |
| Differential Equations |
| Analytical Geometry |
IB ACIO Syllabus 2025 – Reasoning
| Reasoning Topics |
|---|
| Alphanumeric Series |
| Blood Relations |
| Calendars & Clocks |
| Cause and Effect |
| Decision Making |
| Input-Output |
| Odd One Out |
| Puzzles |
| Statement and Assumptions |
| Statement and Conclusions |
| Coding-Decoding |
| Direction Test |
IB ACIO Syllabus 2025 – General Studies & Awareness
| General Studies Topics |
|---|
| History |
| Geography |
| Indian Polity & Constitution |
| Economy & Finance |
| Current Affairs (National & International) |
| Science and Technology |
| Biology, Physics, Chemistry |
| Static GK |
IB ACIO Syllabus 2025 – English Language
| English Language Topics |
|---|
| Grammar and Sentence Structure |
| Vocabulary – Synonyms/Antonyms |
| One Word Substitution |
| Spotting Errors |
| Idioms and Phrases |
| Passage-based Questions |
| Spell Check |
| Fill in the Blanks |
IB ACIO Tier II Syllabus 2025
Once you clear the Tier-I stage of the IB ACIO 2025 exam, you’re one step closer to becoming an Intelligence Officer. But don’t take a break yet – Tier II is equally crucial.
This stage tests your writing ability, clarity of thought, and how effectively you express ideas – all vital skills for an Intelligence Bureau officer. In this blog, we break down the IB ACIO Tier II Syllabus, followed by a complete explanation of the final merit list criteria and selection process.
IB ACIO 2025 Tier II Syllabus – Descriptive Paper
The Tier II paper is descriptive in nature, carrying a total of 50 marks. It includes essay writing, precis writing, and comprehension. Candidates must showcase structured, analytical, and crisp writing.
| Subject | Topics |
|---|---|
| Essay Writing |
|
| Precis Writing | Based on short paragraphs – assess vocabulary & summarization skills |
| Comprehension | Based on understanding and interpreting a given passage |
Preparation Tip:
Candidates must brush up on grammar rules, composition techniques, and vocabulary to excel in this paper. Regular writing practice will be key.
IB ACIO 2025 Final Merit List & Selection Process
The final selection for the post of Assistant Central Intelligence Officer (Grade-II/Executive) is done after evaluating all three tiers – Tier-I, Tier-II, and Tier-III (Interview). Here’s how it works:
| Stage | Details |
|---|---|
| Tier-I Exam | Objective type test across 5 cities. “Mark for Review” answers are not considered. |
| Tier-I Cut-Off |
UR: 35 OBC: 34 SC/ST: 33 EWS: 35 Ex-servicemen: As per category |
| Shortlisting for Tier-II | Top 10x candidates (based on vacancies) are shortlisted based on normalized Tier-I marks. |
| Tier-II Exam | Descriptive paper. Minimum 33% (17 out of 50 marks) required to qualify for Tier-III. |
| Shortlisting for Tier-III | Top 5x candidates shortlisted for Interview based on combined scores of Tier-I and Tier-II. |
| Final Merit List | Based on combined marks of Tier-I, Tier-II, and Interview (Tier-III). |
| Post-Selection Steps | Character & Antecedent Verification followed by Medical Examination. |
| Appointment Type | Initially temporary. Final appointment as per government rules and procedures. |
IB ACIO 2025 Notification
The ACIO IB syllabus is designed to test not just your knowledge, but your reasoning, writing, and communication skills. Prepare smartly for both objective and descriptive stages.
🔔 Quick Update
IB ACIO 2025 Notification released on 18th July 2025 at mha.gov.in
3717 vacancies for ACIO Grade II/Executive
Apply from 19th July to 10th August 2025
Selection via Written Exam + Interview
Use the IB ACIO Syllabus, Previous Year Papers, and Online Coaching 2025 to prepare effectively
This is a golden opportunity for graduates—start your prep today!
Frequently Asked Questions
The Tier I exam includes Quantitative Aptitude, General Awareness, Logical/Analytical/Numerical Ability & Reasoning, and English Language. It is an objective-type paper.
Tier II is a descriptive paper that tests candidates on Essay Writing, Precis Writing, and Comprehension. It evaluates your writing and expression skills.
As per the notification:
UR: 35
OBC: 34
SC/ST: 33
EWS: 35
These are the minimum qualifying marks required for Tier I.
The application process starts from 19th July 2025 and will remain open till 10th August 2025 on the official website mha.gov.in.
The final merit list is prepared based on combined marks of Tier-I, Tier-II, and the Interview (Tier-III). Only those who qualify all stages and clear document verification and medical exam are considered for final selection.
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