The Ministry of Home Affairs (MHA) conducts the IB ACIO Exam every year just to recruit candidates for the post of Assistant Central Intelligence Officer Grade-II Executive in the Intelligence Bureau. Candidates should start preparing for this competitive exam, must first understand the IB ACIO Syllabus and Exam Pattern 2025. The selection process has three stages, and the syllabus includes General Studies, Current Affairs, Quantitative Aptitude, Reasoning, and English. Knowing the updated syllabus and pattern for Tier 1, Tier 2, and Tier 3 will help candidates make an effective study plan.
IB ACIO Syllabus and Exam Pattern 2025
As per the official IB ACIO Recruitment 2025 , the IB ACIO 2025 Exam is conducted to recruit candidates for 3717 Grade II/Executive posts in the Intelligence Bureau of India. To perform well, candidates must prepare both the objective (Tier 1) and descriptive (Tier 2) sections. The IB ACIO Syllabus is not very lengthy but it only requires a strong understanding of concepts and smart solving techniques. Knowing the detailed IB ACIO exam pattern and syllabus is the first step to making an effective preparation plan. In this article, candidates will find the complete syllabus and pattern for both Tier 1 and Tier 2 that will helps them to prepare effectively.
IB ACIO Syllabus 2025: Overview
Check out the table below to get more information on IB ACIO Syllabus 2025. This IB ACIO Syllabus 2025 Overview includes all the content in a short format.
| IB ACIO Syllabus 2025 | |
| Organization | Intelligence Bureau |
| Exam Name | Assistant Central Intelligence Officer-Grade-II/Executive Examination 2025 |
| Post | Assistant Central Intelligence Officer, Grade II/Executive |
| Vacancy | 3717 |
| Category | Syllabus |
| Negative Marking | 1/4 marks for each wrong attempt |
| Selection Process | Written Examination and Interview |
| Application Mode | Online |
| Official Website | mha.gov.in |
IB ACIO 2025 Selection Process
Below we have given the selection process of the IB ACIO 2025 Exam.
IB ACIO Exam Pattern 2025
Candidates who have applied for the IB ACIO Recruitment should be completely aware of the IB ACIO Exam Pattern 2025. For your convenience, we have attached the IB ACIO Exam Pattern 2025 in this section. This will make you get enlightened about the selection process set by the organisation.
| IB ACIO Exam Pattern 2025 | |||
| Written Examination | Description of the Examination | Time | Marks |
|
Tier 1: 100 Objective type MCQs, divided into 5 parts containing 20 questions of 1 mark each on. Current Affairs, General Studies, Numerical Aptitude, Reasoning/Logical Aptitude, English |
1 Hour | 100 | |
| Tier 2: Descriptive type paper of 50 marks Essay (20 marks); English comprehension (10 marks) & Long answer type questions (2 questions of 10 marks each on Current Affairs, Economics, Socio-political issues etc. (20 marks). | 1 Hour | 50 | |
| Interview | Tier3: Interview | – | 100 |
IB ACIO Tier I Exam Pattern 2025
The IB ACIO Tier I Exam is divided into five parts: Current Affairs, General Awareness, Quantitative Aptitude, Reasoning, and English Language. The detailed exam pattern is given in the table below.
| IB ACIO Exam Pattern 2025 For Tier I | |||
| Subjects | No. Of Questions | Marks | Time |
| Current Affairs | 20 | 20 | 1 Hour |
| General Studies | 20 | 20 | |
| Numerical Aptitude | 20 | 20 | |
| Reasoning and Logical Aptitude | 20 | 20 | |
| English Language | 20 | 20 | |
| Total | 100 | 100 | |
IB ACIO Tier II Exam Pattern 2025
The Tier II Exam for Intelligence Bureau ACIO will be Descriptive Type. The time period for the complete IB ACIO Tier II Exam 2025 is 1 Hour.
| IB ACIO Exam Pattern 2025 For Tier II | |||
| Topic | Maximum Marks | Time Duration | |
| Essay Writing | 20 | 1 Hour | |
| Comprehension | 10 | ||
| Current Affairs, Economics, Socio-political issues, etc. (2 questions of 10 marks each) | 20 | ||
| Total | 50 | ||
IB ACIO Tier III Personal Interview
The Tier‑3 stage of the IB ACIO selection process is a face-to-face personal interview conducted to assess the overall suitability of the candidate for the role of Assistant Central Intelligence Officer. This stage holds significant importance, as it goes beyond academics and tests the candidate’s mental alertness, presence of mind, and awareness of national security issues.
IB ACIO Syllabus 2025
To perform well in the IB ACIO 2025 Exam, candidates need a clear grasp of the core subjects covered in the objective paper. The Tier-I exam is just to test a candidate’s awareness, analytical thinking, and problem-solving skills across five key areas: Current Affairs, General Studies, Quantitative Aptitude, Reasoning Ability, and English Language. In the following section, we break down each subject to help you focus on what truly matters for scoring high.
| IB ACIO Syllabus 2025 |
||||
| Current Affairs Syllabus | General Studies Syllabus | Numerical Aptitude Syllabus | Reasoning / Logical Aptitude Syllabus | English Syllabus |
| National News | Polity and the Indian Constitution | Ratios | Seating Arrangement |
Idioms and Phrases
|
| International News | Indian history | Missing Numbers | Puzzles | Verbs |
| New Schemes | Science and Technology | Age | Syllogism | Fill in the blanks |
| Eminent Personalities | Geography | Time and Work | Blood Relations | Spellings |
| Financial Schemes | Physics | Volume | Input-Output | Grammar |
| Nobel Prize Winners | Biology | LCM and HCF | Order and Ranking | Adjectives |
| Awards. | Chemistry | Percentage | Calendars and Clocks | Fill in the blanks |
| Economics and Finance | Factoring | Inequalities | Spellings | |
| Computer Science | Profit and Loss | Alphanumeric Series | Grammar | |
| Current Affairs | Simple and Compound Interest | Data Sufficiency |
Synonyms/Antonyms
|
|
| Static GK | Time and Distance | Coding-Decoding |
Verbal Comprehension Passage
|
|
| Average | Distance and Direction | Spot the error | ||
| Fractions | Verbal and Non Verbal Reasoning | Verbs | ||
| Mensuration | Cause and Effect |
Sentence Structure
|
||
| Prices and Expenditure Problems | Odd One Out | Vocabulary | ||
| Series Completion | Charts |
Detecting misspelled words
|
||
| Real Analysis | Cause and Effect | Clauses | ||
| Essential Mathematics | Character Puzzles | Passage | ||
| Computation of Whole Numbers | Classifications | Improvement | ||
| Analytical Geometry | Logical Sequence of Words |
One-word substitution
|
||
| Prices and Expenditure Problems | Completion of Patterns | |||
| Operations Research & Linear Programming | Decision Making | |||
| Calculus | Image Analysis | |||
|
Fundamental Arithmetical Operations
|
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IB ACIO Tier II Syllabus
Below we have discussed the IB ACIO Tier II Syllabus.
| IB ACIO Tier II Syllabus |
||
| Section | Marks | Details |
| Essay Writing | 20 |
Write a structured essay (intro, body, conclusion)
|
| English Comprehension | 10 |
Read and analyse a passage, answer questions that test understanding and vocabulary
|
| Long Answer Type Questions | 20 | (2 questions of 10 marks each on Current Affairs, Economics, Socio-political issues, etc. |
| Duration | 60 minutes | |
| Related Posts | |
| IB ACIO Previous Year Question Papers | |
| IB ACIO Salary | IB ACIO Cut Off |
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