IB Assistant Central Intelligence Officer ACIO Syllabus 2025 PDF: The Intelligence Bureau will release a Notification for ACIO Vacancies soon. Candidates interested in applying for Intelligence Bureau Recruitment 2025 can check the latest syllabus from this article, which the IB Assistant Central Intelligence Officer ACIO Syllabus has officially released. The Selection pattern consists of Paper 1, Paper 2 and an Interview. The Intelligence Bureau works under the Ministry of Home Affairs, Government of India.
IB Assistant Central Intelligence Officer ACIO Exam Syllabus
Intelligence Bureau recruits ACIO posts through three passes. Tier-1 Exam, Tier-2 Exam and Interview round. Tier I is an objective-based paper, whereas Tier II is a descriptive type of Exam. Tier I Exam includes Topics such as General Studies, General Awareness, Reasoning, Quantitative Aptitude, and English Language. And there is a negative marking of 1/4 for every incorrect answer in Tier I.
Intelligence Bureau ACIO Syllabus PDF
| Name of The Organization | Intelligence Bureau, MHA (IB) |
| Name of the Posts | ACIO, ASO & Other Posts |
| Job Location | Across India |
| Category | Syllabus |
| Exam Date | 2025 |
| Official Website | mha.gov.in |
IB ACIO Exam Pattern 2025 for Tier 1 Prelims
There are three Stages in the Selection mode of Intelligence Bureau ACIO Recruitment 2025. There will be Preliminary Test (Tier 1), Mains Exam (Tier II) & Interview Stages. Exam Pattern for Prelims and Mains Exam of IB Job Notification is given below.
- IB ACIO Tier-1 examination is online examination (CBT)
- The Exam has Objective multiple-choice questions
- There are four sections in IB Tier-1 exam
- Negative marking of 0.25 for every wrong answer.
| Type of Examination | Name of the Subjects | No. of Questions | Maximum Marks | Duration |
|---|---|---|---|---|
| Objective Type | General Awareness | 25 | 25 | 60 Min |
| Quantitative Aptitude | 25 | 25 | ||
| Logical Analytical Ability | 25 | 25 | ||
| English Language | 25 | 25 | ||
| Total | 100 | 100 | 60 min | |
Detailed IB ACIO Syllabus 2025 for Tier II (Mains Exam)
- The IB ACIO tier-II Descriptive Paper will be conducted offline.
- The base qualifying mark in Tier 2 is 33%.
| Topic | Max Marks | Duration |
|---|---|---|
| Essay (1 topic) | 30 | 60 Min |
| English Comprehension & Precis | 20 | |
| Total | 50 | 60 mins |
| Interview | 100 Marks |
IB ACIO Syllabus 2025 Full Described
General Awareness: IB Assistant Central Intelligence Officer Syllabus 2025
- History
- Physics
- Biology
- Current Affairs.
- Politics
- Economics
Analytical Ability: IB ACIO Syllabus 2025
- Blood Relation Test.
- Series Completion.
- Character Puzzles.
- Analytical Reasoning.
- Pattern Completion.
- Chart Logic.
- Image Analysis.
- Data Sufficiency.
- Logical Sequence of Words.
- Seating Arrangement.
- Direction Sense Test.
Quantitative Aptitude: MHA Intelligence Bureau ASO ACIO Syllabus
- Number Systems.
- Ratio and Time.
- Profit and Loss.
- Fundamental Arithmetical Operations.
- Computation of Whole Numbers.
- Use of Tables and Graphs.
- The relationship between Numbers.
- Operations Research & Linear Programming.
- Differential Geometry.
- Essential Mathematics.
- Real Analysis.
- Fundamental arithmetical operations.
- Computation of Whole Numbers.
- Time and Distance.
- Ratio and Proportion.
- Differential Equations.
- Time and Work.
- Analytical Geometry.
English Language: IB ACIO Syllabus 2025
- One word substitutions.
- Verbal Comprehension passage etc.
- Detecting Mis-spelt words.
- Idioms and phrases.
- Fill in the blanks.
- Spot the error.
- Synonyms/ Homonyms.
- Sentence structure.
| Download IB Syllabus & Exam Pattern 2025 Pdf | Click Here |








