IB ACIO Syllabus for 2023

The Ministry of Home Affairs in India conducts examinations to recruit Assistant Central Intelligence Officer or Group C executives in the Intelligence Bureau. Every year, these examinations generate thousands of vacancies for aspiring candidates all over the country.

Therefore, it is essential to know the IB ACIO syllabus thoroughly along with the exam pattern. It will help you frame your preparation schedule and complete the syllabus before appearing for the exam.

Apart from the Intelligence Bureau officer cadre examination, candidates can also review the other government exams in the country. They can find the related exam dates, eligibility, vacancy, selection process and more at the linked article.

Kickstart your government exam preparation now and complement it with the links given below:

IB ACIO Detailed Syllabus

The examination process is divided into 3 phases- Tier I, Tier II and Tier III, where the first 2 are writing phases and the 3rd is a personality test.

Tier-I Syllabus

  • The paper will consist of only objective questions.
  • 5 topics in this tier are-
    • English Language
    • Logical Reasoning
    • Quantitative Aptitude
    • General Studies
    • General Awareness

The following table consists detailed syllabus of the IB ACIO syllabus in 2023 for each topic individually:

English Language Reading Comprehension or Passage


One Word Substitution


Idioms and Phrases


Parts of speech

Error Detections

Cloze Test

Fill in the Blanks

Improving Paragraphs and Sentences

Completion of Paragraphs

Para-jumbling Sentences

Narration Modes

Voice Change

Sentence Structure

Single or Double Fillers


Spellings Correction


Logical Reasoning Puzzles

Seating Arrangement

Blood Relations



Order and Ranking


Calendars and Clocks

Data Sufficiency


Alphanumeric Series

Verbal and Non Verbal Reasoning

Distance and Direction

Odd One Out

Cause and Effect



Character Puzzles

Completion of Patterns

Logical Sequence of Words

Image Analysis

Decision Making

Quantitative Aptitude Simplification

Number Series

Quadratic Equations

Data Sufficiency

Data Interpretation

Ratio and Proportion

Mixtures and Alligations



Profit and Loss

Simple and Compound Rate of Interest


Time and Distance

Time and Work



Permutation and Combination




Analytical Geometry



Differential Equations


Real Analysis


General Studies Indian history

Polity and Indian Constitution


Science and Technology

Computer Science




Economics and Finance

General Awareness Static GK and Current Affairs on-

National and International News

Headquarters of Supreme Organizations


Economics and Finance

Books and Authors

Awards and Honours

Important Dates and Events

Sports and Entertainment

Countries, Capitals and Currencies

Eminent Personalities

Tier-II Syllabus

  • This is a descriptive paper.
  • It consists of Essays, English Comprehension and Precis Writing on various current and pivotal topics.

For every tier of the examination, the conducting body releases a call letter. Candidates can get details of the IB ACIO Admit Card at the linked article.

IB ACIO Exam Pattern

The candidates must also be aware of the exam pattern and number division among the topics besides the IB ACIO syllabus. Although the Ministry did not declare the official exam pattern for the current year, candidates can have an idea from previous years’ exams.

Tier-I Exam Pattern

As discussed earlier, tier I consists of an objective paper with 100 questions, carrying 1 mark each. Candidates will get a total of 1 hour to answer their papers. The number division among the subjects of tier I along with the total questions of the exam is as follows:

Subjects Total Questions Total Marks
English Language 20 20
Logical Reasoning 20 20
Quantitative Aptitude 20 20
General Studies 20 20
General Awareness 20 20
Total 100 100

Tier-II Exam Pattern

In contrast to tier-I, tier-II is a descriptive paper held for a time duration of 1 hour.

The following table will show the number division among the subjects in this paper:

Subjects Total Marks
Essay Writing 30
English Comprehension and Precis Writing 20
Total 100

To prepare for the Tier II paper, candidates can refer to the following links:

Tier-III Exam Pattern

Tier-III is the personality test or personal interview round where candidates are called after passing the previous rounds. The interviewer evaluates the selected candidate’s personality, knowledge, presentation and intelligence. However, the time of an interview round can vary from person to person.

This article consists of a thorough discussion on the IB ACIO syllabus, which includes several subjects. This will help a candidate to complete their preparations on time if framed properly. However, aspirants must follow other current affairs on the topics of this syllabus to enhance their knowledge. They can also refer to study materials formulated by subject matter experts to ace their preparation.

To get the best preparation strategy for competitive exams, candidates can visit the linked article.

Get the latest exam updates, study material and more about the government exams at BYJU’S.

Candidates can get the syllabus for each subject common for the IB and other competitive exams at the links given below:

Logical Reasoning for Competitive Exams Logical Reasoning Question and Answers
List of Topics for Quantitative Aptitude General English for Competitive Exams
Data Interpretation Questions General Awareness for Government Exams

Frequently Asked Questions on IB ACIO Syllabus


Is there any negative marking system in tier-I of the IB ACIO exam?

Yes, there is a negative marking of ¼ for each wrong answer in Tier-I of the IB ACIO exam.


Does the IB ACIO exam syllabus include the subject general awareness?

Yes, general awareness is a very crucial subject with a vast syllabus in the IB ACIO exam.


What subjects does the IB ACIO exam tier-II consist of?

The tier-II of the IB ACIO exam consists of 3 topics, which are Essays, English Comprehension and Precis Writing.


What should a candidate refer to prepare for current affairs in general awareness of the IB ACIO syllabus in tier-I?

Candidates preparing for current affairs in general awareness of the IB ACIO syllabus in tier-I must refer to newspapers and current affairs magazines.


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