IB ACIO Syllabus 2025, Download Subject-wise Syllabus PDF Here

Intelligence Bureau Assistant Central Intelligence Officer 2022 ( IB ACIO )

Anangsha Patra
Updated on Jan 28, 2025 15:32 IST

By Anangsha Patra, Deputy Manager – Editorial

IB ACIO Syllabus 2025 outlines the topics that candidates need to prepare for the exam. The syllabus is divided into Tier 1 and 2. IB ACIO syllabus for Tier 1 comprises topics from General Awareness, Quantitative Aptitude, Numerical/Analytical/Logical Ability & Reasoning, English Language, and General Studies. Tier 2 syllabus comprises topics on Essay, English Comprehension, and Precis Writing. Candidates need to go through the syllabus of IB ACIO carefully before beginning with the preparation to get an idea of the topics they need to prepare for the exam.

Q:   What is the syllabus for the Intelligence Bureau Security Assistant exam?

A: 
The subjects that are included in the Intelligence Bureau Security Assistant Syllabus are Reasoning, Arithmetic, General Knowledge, General Studies, and General English . General Awareness & General Studies: Current Affairs (5-6 months), Indian Polity & Constitution, Science & Technology, Physics Economy & Finance, Geography, History, Chemistry Biology and Static GK. Reasoning: Logical Venn diagram, Missing Number, Paper-cutting & folding, Embedded figures, Figure Formation & Analysis, Series, Alphabet Test, Analogy, Arithmetic Reasoning, Blood Relation, Classification, Coding decoding, Distance direction test, Matrix, Cube & Dice, Mirror Image, Water Image, Pattern Completion, Counting of figures. Quantitative Aptitude Speed, Distance & Time, Profit loss, Discount, Ratio Proportion, Average, Boat & Stream, CI & SI, LCM & HCF, Mixture & Allegation, Partnership, Percentages, Complementary angles, Pipes & Cistern, Problem on Ages, Time & Work, Mensuration Data Interpretation, Standard Trigonometry Identities, Heights and Distances (Basic), Histogram, Frequency polygon, Bar diagram & Pie chart. General English . Synonyms & Antonyms, Spotting Error, Para Jumble, Reading Comprehension, Cloze Test Sentence Improvement, fill in the blanks, Idiom & Phrase, One-word Substitution, Active & Passive Voice, and Preposition. For more details, you may visit the Shiksha Intelligence Bureau exam page. (https://www.shiksha.com/exams/ib-acio-exam-syllabus). I hope this will help you.
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Q:   What is the syllabus for Analytical Ability section in IB ACIO exam?

A: 

The topics given in IB ACIO Analytical Ability assess a candidate's ability to think logically. IB ACIO syllabus for Analytical Ability is given below.

Blood Relation Test

Series Completion

Analogy

Character Puzzles

Classification

Series

Analytical Reasoning

Pattern Completion

Chart Logic

Image Analysis

Data Sufficiency

Logical Sequence of Words

Seating Arrangement

Direction Sense Test

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Q:   What is IB ACIO syllabus for General Awareness?

A: 

IB ACIO syllabus for General Awareness is given below.

General StudiesCurrent Affairs
  • Polity and Indian Constitution
  • Indian history
  • Science and Technology
  • Geography
  • Physics
  • Biology
  • Chemistry
  • Economics and Finance
  • Computer Science
  • National News
  • International News
  • New Schemes
  • Eminent Personalities
  • Financial Schemes
  • Nobel Prize Winners
  • Awards
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Q:   What is IB ACIO syllabus for Quantitative Aptitude?

A: 

IB ACIO syllabus for Quantitative Aptitude is given below.

AdvanceArithmetic
  • Mensuration
  • Trigonometry
  • Height and Distance
  • Triangle
  • Circle
  • Polygon
  • Tangent
  • Ratio and Proportion
  • Mixture and Allegation
  • Missing Numbers
  • Age
  • Time and Work
  • Boat and Stream
  • Volume
  • LCM and HCF
  • Percentage
  • Profit and Loss
  • Simple and Compound Interest
  • Time and Distance
  • Average
  • Fractions
  • Series Completion
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Table of content
  • IB ACIO Syllabus 2025
  • IB ACIO Exam Pattern
  • IB ACIO Syllabus 2025 FAQs
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IB ACIO Syllabus 2025

IB ACIO syllabus for Tier 1 and 2 is given below.

IB ACIO Tier 1 Syllabus 

IB ACIO syllabus for the tier 1 exam is given below.

General Awareness

IB ACIO syllabus for General Awareness tests a candidate's knowledge of current affairs. The topics included in General Awareness are given below.

History

Physics

Biology

Current Affairs

Politics

Economics

Analytical Ability

The topics given in IB ACIO Analytical Ability assess a candidate's ability to think logically. IB ACIO syllabus for Analytical Ability is given below.

Blood Relation Test

Series Completion

Analogy

Character Puzzles

Classification

Series

Analytical Reasoning

Pattern Completion

Chart Logic

Image Analysis

Data Sufficiency

Logical Sequence of Words

Seating Arrangement

Direction Sense Test

Get the Top Score in DI and Logical Reasoning section of Competitive Entrance Exams with Expert Prep Tips

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Quantitative Aptitude

The Quantitative Aptitude section of IB ACIO assesses a candidate's calculative ability. The topics in IB ACIO syllabus for Quantitative Aptitude is given below.

Number systems

Percentages

Mensuration

Ratio and Time

Averages

Profit and loss

Fundamental Arithmetical Operations

Computation of whole numbers

Use of tables and graphs

Decimals

Relationship between numbers

Operations Research & Linear Programming

Differential Geometry

Dynamics

Essential Mathematics

Calculus

Real Analysis

Fundamental Arithmetical Operations

Computation of Whole numbers

Time and Distance

Ration and Proportion

Interest

Discount

Algebra

Differential Equations

Statistics

Time and Work

Fractions

Analytical Geometry

Statistics

Get the Top Score in Numerical Ability section of Competitive Entrance Exams with Expert Prep Tips

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English Language

To prepare for IB ACIO English section, candidates should focus on improving their grammar and vocabulary. IB ACIO syllabus for English Language is given below.

Spellings

One Word Substitution

Improvement

Verbal Comprehension Passage

Adjectives

Detecting Mis-spelt words

Idioms and Phrases

Passage

Verbs

Clauses

Fill in the blanks

Spot the error

Synonyms/Antonyms

Vocabulary

Grammar

Sentence Structure

Prepare for Competitive Exams with Expert Tips on English Section

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Numerical/Analytical/Logical Ability & Reasoning

The Numerical/Analytical/Logical Ability & Reasoning carries a total of 20 questions. IB ACIO syllabus for Numerical/Analytical/Logical Ability & Reasoning is given below.

Logical Reasoning 

Alphanumeric series Reasoning Analogies
Artificial Language Blood Relations
Calendars Cause and Effect
Clocks Coding-Decoding
Data Sufficiency Decision Making
Directions Input-Output
Odd One Out Puzzles
Order & Ranking Statement and Assumptions
Statement and Conclusions -

Numerical Ability 

LCM and HCF Ratios
Percentage Factoring
Age Profit and Loss
Missing Numbers Average
Prices and Expenditure Problems Simple and Compound Interest
Time and Work Mensuration
Volume Time and Distance
Fractions Series Completion

IB ACIO Tier 2 Syllabus

Tier II is a descriptive test that assesses a candidate's knowledge of English Language and writing skills. Candidates must check their grammar, vocabulary and general awareness. Questions are given Precis, Comprehension and Essay Writing in this paper. For Essay writing, candidates must check for emergency trends in India, security threats in India and cultural diversity of India.

 Download CURRENT AFFAIRS 2021 Guide - Click Here
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Commonly asked questions

Q:   What are the books for the IB ACIO exam?

A: 
A list of the best books for the IB ACIO exam is mentioned below; 1- Best Books for IB ACIO for General Awareness. 1- India Year Book by Publications Division, Government of India. 2- Pratiyogita Darpan (Monthly Edition). 3- Manorama Yearbook. 2- Best Books for IB ACIO for Quantitative Aptitude; 1- Data Interpretation by Arun Sharma. 2- Quantitative Aptitude For Competitive Examinations by RS Agarwal. 3- The Pearson Guide to Quantitative Aptitude by Dinesh Khattar. 4- Objective Mathematics for Competitive Exams by Tarun Goal. 3- Books for IB ACIO 2021 for Reasoning; 1- A Modern Approach to Verbal and Non-Verbal Reasoning by RS Agrawal. 2- A New Approach to Reasoning by BS Sijwali and Indus Sijwali. 3- Analytical Reasoning by MK Pandey. 4- Books for IB ACIO 2021 for English; 1- A Mirror of Common Errors by AK Singh. 2- Word Power Made Easy by Normal Lewis. 3- Objective General English by SP Bakshi. 4- High School Grammar and Composition by Wren and Martin. For more details, you may visit the Shiksha IB ACIO exam page. (https://www.shiksha.com/exams/ib-acio-exam-books). I hope this will help you.
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Q:   How to prepare for IB ACIO English section?

A: 

The tips and tricks to prepare for IB ACIO English section are given below:

  • Prepare Parts of Speech with all Grammar rules to answer Fill in the Blanks and Error Spotting questions at ease.
  • Read magazines and quiz books to improve your vocabulary
  • Practice reading of long essays and paragraphs to improve your analytical skills
  • Attempt English mocks to solve tricky questions. 
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Q:   How do I prepare for the IB ACIO?

A: 
Be thorough with the IB ACIO exam pattern The first and foremost step towards preparation is getting familiar with the exam pattern Knowing the IB ACIO Syllabus Prepare a study plan Preparation tips for General Awareness Preparation tips for Quantitative Aptitude Preparation tips for Logical/Analytical Ability Preparation tips for English Attempt mock test.
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Q:   How to crack IB ACIO exam in first attempt?

A: 

The tips and tricks to crack IB ACIO exam in first attempt are given below:

  • Understand IB ACIO Exam Pattern
  • Candidates must know the syllabus of IB ACIO
  • Candidates must make notes for revision
  • Candidates must take mock tests to improve speed and accuracy
  • Candidates must analyse their performance in the mock test
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IB ACIO Exam Pattern

IB ACIO exam pattern is different for different stages. The Tier I of IB ACIO exam is an objective test. Each section of the test carries 25 marks. The total mark of the test is 100. The total duration of the exam is 60 minutes. For the correct answer, one mark will be awarded to candidates. For wrong answers, ¼ marks will be deducted. Tier 2 comprises conventional-type questions. The total marks of the exam are 50 and are conducted for 60 minutes. The Interview carries total 100 marks.

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Commonly asked questions

Q:   What is IB ACIO Tier 2 exam pattern?

A: 

The Tier II exam comprises descriptive tasks involving comprehension, precis writing, and essay composition. Candidates are given a duration of 1 hour to complete this section, which holds a total weightage of 50 marks.

IB ACIO Exam Pattern Tier II
Section Marks Total Time 
Essay Writing301 Hour
Comprehension and Precis Writing20
Total50 
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Q:   What is IB ACIO Tier 1 exam pattern?

A: 

The Tier 1 of IB ACIO exam comprises questions from General Studies, Quantitative Aptitude, General Awareness, Analytical Ability, and English Language. The total marks allotted to the test are 100.

IB ACIO Exam Pattern Tier I 
Sections Total Questions Total Marks Time 
General Awareness202060 Minutes
Quantitative Aptitude2020
Analytical Ability2020
English Language2020
General Studies2020
Total 100100
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Q:   What is IB ACIO Exam Pattern?

A: 

IB ACIO exam pattern is given below.

Written ExaminationDescription of the ExaminationTime Marks
Tier I Exam: 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 Hour100
Tier II: Descriptive type paper of 50 marks essay (30 marks) and English comprehension and precis writing (20 marks)1 Hour50
InterviewTier 3: Interview100
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Q:   What is the marking scheme of IB ACIO exam?

A: 

The marking scheme of IB ACIO is given below:

  • There will be a negative marking of ¼ mark for each wrong answer in the Tier I exam
  • For a correct answer in Tier I, candidates will get one mark
  • No marks will be awarded for un-attempted questions
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IB ACIO Syllabus 2025 FAQs

Candidates can check below IB ACIO syllabus FAQs.

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Commonly asked questions

Q:   How many marks are allotted for correct answers in IB ACIO exam?

A: 

For a correct answer in Tier I, candidates will get one mark. For incorrect answers, 1/4 marks are deducted. The total marks in the exam are calculated based on the correct and incorrect answers. 

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Q:   How do I crack the Security Assistant Intelligence Bureau exam?

A: 
1- To crack the Security Assistant Intelligence Bureau exam, it is important to understand the syllabus and exam pattern inside and out. 2- Learn the concepts of each and every topic that is likely to appear in the upcoming Intelligence Bureau Security Assistant Exam. 3- Follow a timetable and study plan, count the days left in the exam, and make a schedule accordingly. 4- For general awareness, read newspapers and books regularly if possible. Try to focus on Current Affairs history, geography, Science & technology, Indian polity & constitution, economics & finance. 5- Practicing questions from books and previous year's questions can help you gain confidence in yourself. 6- The IB Security Assistant Exam consists of three stages: Tiers I, II, and III (Interview). 7- The selection will be done on the basis of the cumulative score in all three stages. 8- Candidates who qualify for Tier-I have to go for Tier-II examinations. Candidates can check their results by entering their roll number, registration number, and password or date of birth. 9- To succeed in the IB Security Assistant Exam, you need good preparation resources, such as books or online courses. It also requires practicing topic tests, sectional tests, and full mock tests while managing time effectively. Finding and resolving weak areas can help improve your performance. 10- Confidence in oneself is also important for success. For more details, you may visit the Shiksha IB ACIO exam page. (https://www.shiksha.com/exams/ib-acio-exam). I hope this will help you.
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Q:   How do I join the Intelligence Bureau as a security assistant?

A: 

IB Security Assistant Selection Process: The selection process for the post of Security Assistant or Executive at the Intelligence Bureau of India comprises the following 3 stages: Tier I - Objective Test Tier II - Descriptive Test Tier III - Interview/ Personality Test IB Security Assistant Application Process 2023: 1- Register yourself through the Maharashtra official website or NCS Portal only. 2- After Registration, log in with your credentials to fill out the Intelligence Bureau Security Assistant or Executive Application Form. Enter all required details and complete the Intelligence Bureau application. 3- Upload the Intelligence Bureau required documents in the prescribed format. 4- Pay the Online Intelligence Bureau Application fee. 5- Submit the application form. Take a printout of the application form for future use. For more information, you may visit the Shiksha IB exam page. (https://www.shiksha.com/exams/ib-acio-exam). I hope this will help you.

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Answered Yesterday

For a correct answer in Tier I, candidates will get one mark. For incorrect answers, 1/4 marks are deducted. The total marks in the exam are calculated based on the correct and incorrect answers. 

M

Mani Shukla

Beginner-Level 4

Answered Yesterday

The selection of candidates for this post is done based on shortlisting and interview. The GATE score of 1000 will be accepted for the recruitment process. The interview carries 175 marks. The interview is aimed to assess the candidate's traits on two parameters, i.e. subject knowledge in relevant f

...Read more

J

Jasleen Harsha

Beginner-Level 4

Answered Yesterday

The highlights of IB ACIO exam pattern for Executive post are given below.

Exam name

IB ACIO

Stages of exam

Tier I, II and Interview

Mode of exam

Tier-I Online

Tier-II: Offline

Nature of questions

Tier I: Objective Type

Tier II: Descriptive Type

Total marks

Tier I: 100

Tier II: 50

Interview: 100

Duration of the test

Tier I: 60

Tier II: 60

Negative marks

1/4

S

Sumridhi Singh

Beginner-Level 4

Answered Yesterday

IB ACIO 2025 application form will be released soon. The application form will be released online and candidates need to fill the same within the prescribed deadline. Only online applications will be accepted for the exam. Candidates need to pay the processing fee of INR 450. Male candidates of UR,

...Read more

B

Bhumika Arora

Beginner-Level 4