IB ACIO Syllabus and Exam Pattern 2025 for Grade-II Executives

The Ministry of Home Affairs (MHA) conducts every year IB ACIO exam for the post of Assistant Central Intelligence Officer Grade-II Executive in the Intelligence Bureau. The first step to begin preparation for the IB ACIO examination is that the candidates must know the complete IB ACIO Syllabus and Exam Pattern to plan a proper exam strategy for the examination.

IB ACIO Syllabus and Exam Pattern 2025

To ace the IB ACIO Grade-II/ Executive Exam, it is necessary to know the Exam pattern and detailed syllabus of this exam. This will help you to prepare judiciously for the IB ACIO Recruitment 2025. Let’s understand the IB ACIO Syllabus and Exam Pattern 2025 one by one.

IB ACIO Syllabus 2025- Highlights
Organization Name	Intelligence Bureau (IB)
Exam Conducting Body Name	Ministry of Home Affairs (MHA)
Exam Name	IB ACIO Grade-II/ Executive Examination 2025
Post Name	ACIO Grade II/ Executive
Category	Syllabus
Total No. of Questions	Tier 1 - 100 ques
Total Marks	Tier 1 - 100 marks Tier 2 - 50 marks
Type of Questions	Tier 1 - Objective Type Tier 2 - Descriptive Type
Selection Process	Written Test (Tier 1 & Tier 2)- Interview
Official Website	www.mha.gov.in or www.ncs.gov.in

IB ACIO Selection Process 2025

The selection process for the Intelligence Bureau ACIO 2025 exam is divided into three phases, which are given below. The IB ACIO Grade-II/ Executive Recruitment 2025 posts are subject to All India Service Liability, which means candidates selected for appointment are liable to serve anywhere in India.

1. Tier 1 (Phase-1)- 100 Objective Type Questions
2. Tier 2 (Phase-2)- Descriptive Type
3. Interview (Phase-3)

IB ACIO Tier 1 exam is a written objective-type exam. The candidates who will clear the Tier 1 exam will then appear in the Tier 2 exam. The Tier 2 exam is descriptive and to pass the Tier 2 exam, candidates are required to score at least 33% marks (as per the rule). Based on Tier 1 and Tier 2 exam performances, candidates will be called for an interview for the final round of selection.

IB ACIO Exam Pattern 2025

The questions in Tier 1 Exam will be Objective-type questions and in Tier 2, the questions will be descriptive.
For each incorrect answer in IB ACIO Tier 1, there will be a negative marking of ¼ mark.
The time duration for each tier is 1 hour.

IB ACIO Tier-1 Exam Pattern 2025
Subjects	No. of Questions	Marks	Duration
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-2 Exam Pattern 2025
Papers	Maximum Marks	Time
Essay	30	1 Hour
English comprehension & précis writing	20	1 Hour
Total	50	1 Hour

IB ACIO Syllabus 2025

Check the IB ACIO Syllabus 2025 for Quantitative Aptitude, General Awareness & General Studies, Logical/Analytical/Numerical Ability & Reasoning, and English Language from the section below and prepare for the IB ACIO Exam 2025.

IB ACIO Syllabus for Quantitative Aptitude

IB ACIO Quantitative Aptitude Syllabus 2025
Number systems	Percentages
Mensuration	Ration 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
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 Syllabus for General Studies

IB ACIO General Studies Syllabus 2025
History	Physics
Biology	Current Affairs
Science & Technology	Static GK
Indian Polity & Constitution	Economy & Finance
Geography	Chemistry

IB ACIO Syllabus for Numerical Ability & Reasoning

IB ACIO Numerical Ability & Reasoning Syllabus 2025
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	-

IB ACIO Syllabus for English Language

IB ACIO English Language Syllabus 2025
Spellings Correction	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

IB ACIO Interview Process

Candidates who will be qualified in both Tier 1 and Tier 2 exams will be selected for the final round i.e. interview round. The IB ACIO interview round comprises 100 marks. Candidates appearing in interviews may be subject to the Psychometric/Aptitude Test, which will be a part of the interview.

Interview	Maximum Marks
Interview	100

Important Links
IB ACIO Grade 2/Executive Salary	IB ACIO Cut Off [Previous Year]
IB ACIO Previous Year Question Paper	IB ACIO Online Coaching

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IB ACIO Syllabus 2025: FAQs

Ans. IB ACIO Paper 1 Syllabus covers various topics from General Studies, Qualitative Aptitude, General Awareness, Analytical ability, and English Language.

Ans. The selection process includes three stages- Tier 1 (Phase-1), Tier 2 (Phase-2), and Interview (Phase-3)