IB ACIO Syllabus 2025, Exam Pattern, Tier 1, Tier 2 & Interview

IB ACIO Syllabus 2025 covers Tier 1, Tier 2, and Interview stages. Check detailed exam pattern, marking scheme, subjects, and topic-wise syllabus to prepare effectively for all phases.

IB ACIO Syllabus 2025

The IB ACIO Syllabus 2025 covers a wide range of topics aimed at testing a candidate’s general awareness, analytical ability, quantitative skills, and English proficiency. The selection process includes three stages: Tier 1 (Objective Test), Tier 2 (Descriptive Test), and a Personal Interview. Tier 1 comprises multiple-choice questions from subjects like General Awareness, Quantitative Aptitude, Logical Reasoning, and English. Tier 2 assesses the candidate’s writing ability through essays, précis, and comprehension tasks. Those who qualify for both written stages are called for the final interview, which evaluates their personality, communication skills, and overall suitability for the intelligence role.

IB ACIO Syllabus 2025

The IB ACIO Syllabus 2025 provides a clear outline of the subjects and topics to be covered for the Intelligence Bureau recruitment exam. It is divided into two main stages: Tier 1, which tests objective knowledge, and Tier 2, which evaluates writing skills. The syllabus includes areas like General Awareness, Quantitative Aptitude, Reasoning, English Language, and Essay Writing. Knowing the complete syllabus helps candidates plan their preparation in the right direction.

IB ACIO Syllabus 2025 Overview

The IB ACIO Syllabus 2025 is designed to assess candidates’ aptitude, reasoning ability, general awareness, and writing skills. Below is the syllabus overview table:

IB ACIO Syllabus 2025 Overview
Post NameAssistant Central Intelligence Officer Grade-II/Executive
Vacancies3,717
SyllabusTier 1: General Awareness, Quantitative Aptitude, Logical Reasoning, English (100 MCQs); 

Tier 2: Essay, Precis, Comprehension (Descriptive, 50 marks)

SubjectsTier 1: Current Affairs, General Studies, Reasoning, Numerical Aptitude, English; 

Tier 2: Essay Writing, English Comprehension & Precis Writing

Marking SchemeTier 1: +1 mark per correct answer; 

Tier 2: Weighted by descriptive evaluation

Negative MarkingTier 1: 0.25 mark deducted for each incorrect answer; 

Tier 2: none

Selection ProcessTier 1 (Objective) → Tier 2 (Descriptive, min 33% to qualify) → Tier 3 (Interview/Personality Test)
Official Websitewww.mha.gov.in

IB ACIO Exam Pattern 2025

The IB ACIO Exam Pattern 2025 is structured into three stages: Tier 1 (Objective Test), Tier 2 (Descriptive Test), and the Interview. Each stage is designed to evaluate different skills including aptitude, writing ability, and personality traits essential for intelligence services.

IB ACIO Exam Pattern 2025
Exam StageSubjectsNo. of QuestionsTotal MarksTime Duration
Tier-1 (Objective)Current Affairs20201 hour
General Studies2020
Numerical Aptitude2020
Reasoning and Logical Aptitude2020
English Language2020
Total (Tier-1)100100
Tier-2 (Descriptive)Essay Writing301 hour
English comprehension & précis writing20
Total (Tier-2)50

IB ACIO Syllabus 2025 for Tier 1 Exam

The IB ACIO Syllabus 2025 for Tier 1 Exam includes subjects that test a candidate’s general awareness, reasoning ability, numerical skills, and English language proficiency. This objective-type exam is the first stage of the selection process and is crucial for shortlisting candidates for the next round.

IB ACIO Syllabus 2025 for Tier 1 Exam
SubjectDetailed Topics
General AwarenessCurrent Affairs (last 6–12 months: national & international)

Static GK

Indian History: Ancient, Medieval, Modern

Geography: India & World

Indian Polity & Constitution

Indian Economy & Union Budget

Government Schemes & Policies

Awards & Honours

Sports & Important Events

Environment & Ecology

Science & Technology Developments

Quantitative AptitudeNumber System, LCM, HCF

Simplification, Approximation

Percentage, Profit & Loss, Discount

Ratio & Proportion, Partnership

Simple & Compound Interest

Time, Work, and Wages

Time, Speed & Distance

Boats & Streams, Pipes & Cisterns

Algebra (Linear equations, Quadratic equations)

Data Interpretation (Bar graph, Pie chart, Table, Line chart)

Mensuration (2D & 3D)

Logical ReasoningCoding-Decoding

Series (Number, Letter, Mixed)

Direction Sense

Blood Relations

Syllogism

Statement & Conclusions

Analogy & Classification

Order & Ranking

Seating Arrangement (Linear & Circular)

Puzzles

Cause & Effect, Assumptions, Inference

English LanguageReading Comprehension (factual & inference-based)

Cloze Test

Synonyms & Antonyms

Sentence Improvement & Rearrangement

Error Spotting

Fill in the Blanks

One Word Substitution

Idioms & Phrases

Active & Passive Voice

Direct & Indirect Speech

General StudiesIndian Constitution and Amendments

Fundamental Rights and Duties

National & International Institutions (UN, WHO, IMF etc.)

Indian Freedom Movement

Planning in India (Five-Year Plans, NITI Aayog)

Social Issues in India (Women Empowerment, Education, Sanitation, etc.)

Environmental Issues (Pollution, Climate Change)

Global Summits (COP, G20 etc.)

IB ACIO Syllabus 2025 for Tier 2 Exam 

The IB ACIO Syllabus 2025 for Tier 2 Exam focuses on evaluating a candidate’s writing and comprehension skills in English. This stage is descriptive in nature and includes essay writing, precis writing, and reading comprehension. It plays a crucial role in assessing a candidate’s ability to express ideas clearly and effectively.

IB ACIO Syllabus 2025 for Tier 2 Exam
SectionDetailed Topics & Guidelines
Essay WritingTopics may be based on:

National Security & Internal Threats

Terrorism and Cyber Security

India’s Foreign Relations

Government Schemes

Role of Youth in Nation Building

Social Media & Mental Health

Environmental Concerns

Word limit: ~250 words

Language: English only

Precis WritingA condensed version of a given passage

Must retain core message

Use your own language; avoid copying phrases

Focus on clarity, grammar, and coherence

English ComprehensionPassage-based questions

Focus on identifying main idea, tone, inference, and facts

May include vocabulary and grammar-based questions from the passage

IB ACIO Interview 2025

The IB ACIO Interview 2025 is the final stage of the selection process conducted by the Ministry of Home Affairs. It is designed to assess the candidate’s personality, communication skills, awareness of national and international issues, and overall suitability for a role in intelligence services. Candidates who qualify the Tier 1 and Tier 2 exams are shortlisted for this 25-mark interview round.

Also Check: IB ACIO Eligibility Criteria 2025

IB ACIO Syllabus 2025 Preparation Tips

Preparing for the IB ACIO Exam 2025 requires a clear understanding of the syllabus and a focused study approach. With a well-planned strategy, consistent practice, and regular revision, candidates can effectively cover all subjects and improve their chances of success in the exam.

  • Understand the complete syllabus and exam pattern before starting preparation.
  • Create a realistic and well-balanced daily study schedule covering all subjects.
  • Focus more on high-weightage topics and frequently asked sections like reasoning and general awareness.
  • Read newspapers and monthly current affairs magazines regularly to stay updated.
  • Practice previous year question papers to understand the trend and difficulty level.
  • Take regular mock tests to improve speed, accuracy, and time management.
  • Revise important formulas, facts, and concepts weekly to retain them better
  • Work on improving your writing skills for the Tier 2 descriptive paper.
  • Stay calm and focused during preparation and avoid last-minute cramming.
  • Analyze your mock test performance and work on weak areas consistently.

IB ACIO Syllabus 2025 FAQs

Q1. What subjects are included in the IB ACIO Tier 1 exam?+

Q2. Is there any negative marking in the IB ACIO Exam 2025?+

Q3. What is the difficulty level of the IB ACIO Exam?+

Q4. What type of topics are asked in the descriptive paper (Tier 2)?+

Q5. How should I prepare for the IB ACIO interview?+

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