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IB ACIO Syllabus 2025 Tier 1 & Tier 2 Exam Pattern, Subject-wise Topics

authorImageNigam Sharma9 Sept, 2025
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IB ACIO Syllabus 2025

IB ACIO Syllabus 2025: The Intelligence Bureau has announced to fill 3717 ACIO7 posts under the IB ACIO Recruitment 2025. Candidates should have knowledge and understanding of the IB ACIO Syllabus 2025. Then, they can begin with the exam preparation.

IB ACIO Exam Date hasn't been announced yet by the MHA. Still, candidates should review the IB ACIO Exam Pattern 2025 with the syllabus. Then, begin with the exam preparation without waiting for the exam date announcement. IB ACIO is one of the competitive exams that demands consistent practice with revision of important concepts. 

IB ACIO Syllabus 2025 Overview

IB ACIO Syllabus 2025 for Tier 1 and Tier 2 understanding is essential for every candidate to give the exam. They can know the topics and start the preparation for the exam. 

IB ACIO Syllabus 2025 Overview

Conducting Body Name

Ministry of Home Affairs (MHA)

Post Name

ACIO Grade II/ Executive

Vacancies

3717

Type of Questions 

Tier 1 Objective Type

Tier 2 - Descriptive Type

Selection Process

Tier 1 Written Exam

Tier 2 Descriptive Test

Tier 3 Interview

Tier 1 Subjects

Current Affairs, General Studies, Reasoning, Numerical Aptitude, English

Tier 2 Subjects

Essay Writing, English Comprehension, Long-Answer Type Questions

Official Website 

mha.gov.in

ncs.gov.in

IB ACIO Exam Pattern 2025

IB ACIO Exam Pattern 2025 is separate for Tier 1 and Tier 2. Tier 1, objective-based based paper testing the problem solving skills of the candidates.It includes Long Form Questions, Comprehension, and Essay Writing questions asked Tier 2 paper. Students should check the IB ACIO Syllabus 2025 with the exam pattern. 

IB ACIO Exam Pattern For Tier 1

IB ACIO Tier 1 is an objective-based paper. A total of 100 questions are asked in Current Affairs, General Studies, Numerical Aptitude, Reasoning, and English Language sections. Candidates get 1 time to solve the 100 questions. 

IB ACIO Exam Pattern 2025 For Tier 1

Section

No. of Questions

Marks

Duration

Current Affairs

20

20

1 Hour

General Studies

20

20

Numerical Aptitude

20

20

Reasoning/Logical Aptitude

20

20

English Language

20

20

Total

100

100

1 Hour

IB ACIO Exam Pattern For Tier 2

Candidates get Essay Writing, Comprehension, and Long Questions of 50 marks. They get 1 hour to attempt the descriptive questions in the Tier 2 exam. Candidates can check the IB ACIO Exam Pattern 2025. 

IB ACIO Exam Pattern For Tier 2

Papers

Maximum Marks

Time

Essay Writing

20

1 Hour

English comprehension

10

Long answer type questions 

(2 questions of 10 marks each on Current Affairs, Economics, Socio-political,l issues, etc)

20

Total 

50

IB ACIO Syllabus PDF Download 2025

IB ACIO Syllabus PDF Download 2025 is for Tier 1 and Tier 2 topics for the exam. Candidates can check the IB ACIO Syllabus 2025. The Tier 1 and Tier 2 levels Syllabus covers objective and descriptive sections. Candidates should carefully read the syllabus so as not to miss anything important for the exam. 

IB ACIO Tier 1 Syllabus 2025

IB ACIO Syllabus 2025 For Tier 1 paper covers English, Reasoning, Current Affairs, Quantitative Aptitude, and General Studies sections. All the subjects carry a 20-mark weightage. IB ACIO Tier 1 has 100 questions, asked the paper i.e. 20 questions from every section. 

IB ACIO Tier 1 Syllabus 2025

Subject

Topics

Quantitative Aptitude

  • 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 Number
  • Operations Research & Linear Programming
  • Differential Geometry
  • Dynamics
  • Essential Mathematics
  • Calculus
  • Real Analysis
  • Time and Distance
  • Ratio and Proportion
  • Interest
  • Discount
  • Algebra
  • Differential Equation
  • Statistics
  • Time and Work
  • Fractions
  • Analytical Geometry
  • LCM and HCF
  • Ratios
  • Factoring
  •  Age
  • Missing Numbers
  • Average
  • Prices and Expenditure Problems
  • Simple and Compound Interest
  • Volume
  • Series Completion

General Studies

  • History
  • Physics
  • Biology
  • Current Affairs
  • Science & Technology
  •  Static GK
  • Indian Polity & Constitution
  • Economy & Finance
  • Geography
  • Chemistry

Numerical Ability & 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

English Language

  • Spellings Correction
  • One Word Substitution
  • Improvement
  • Verbal Comprehension Passage
  • Adjectives
  • DeteMisspelt-spelt Words
  • Idioms and Phrases
  • Passage
  • Verbs
  • Clauses
  • Fill in the Blanks
  • Spot the Error
  • Synonyms/Antonyms
  • Vocabulary
  • Grammar
  • Sentence Structure

IB ACIO Tier 2 Syllabus 2025

IB ACIO Tier 2 Exam paper-based Paper based offline paper. It is a descriptive exam covering Essay Writing, Long Questions, and Comprehension. The topics will be based on the current affairs section. 

IB ACIO Tier 2 Syllabus 2025 
Section Description
Essay Writing One essay on current affairs, social or national issues
English Comprehension Reading comprehension passage with questions
Long Answer Questions 2 questions (10 marks each) based on Current Affairs, Economics, or Socio-political Issues

IB ACIO Interview 2025

An interview is Tier 3 in the IB ACIO Selection Process . Its weight is 100 marks. Candidates have to face the Psychometric Test and various assessments before appearing for the interview round. Candidates should focus on working on their writing skills for the exam. 

IB ACIO Syllabus 2025 Preparation Tips

Candidates decided to participate in the IB ACIO Recruitment 2025. They know that there are two exam stages Tier 1 and Tier 2, covering objective and descriptive questions respectively. The speed with Accuracy should be a target point in the preparation journey. Then comes the interview round. The focus is on the presentation skills in front of the panel pof eople.

  • Know IB ACIO Syllabus Topics: Candidates should begin with the exam preparation by knowing the syllabus topics. There are two rounds i.e. IB ACIO Tier 1 and Tier 2. Objective and Descriptive questions are covered. Candidates should know how to balance out while preparing for these two sessions. 
  • Focus on Improving Speed: Start with the IB ACIO exam preparation by working on the speed and accuracy to solve the problems. Don’t miss the suspense part of ¼ of the negative marking in the paper. 
  • Regular Revision & Practice: Candidates' preparation for IB ACIO Exam will begin with preparing together for Tier 1 and Tier 2 byrs. Start with the long-format questions in the descriptive paper. Then, use the time to practice the objective questions for the Tier 1 section. 
  • Make Handwritten Notes: Solving IB ACIO Mock Test, students can get some essential tricks to quickly solve questions. Write these tricks in a separate notebook. It could be a valuable resource for last-minute preparation. 
  • Solve IB ACIO Mock Tests & PYQs: Candidates should complete the syllabus on time. They are left to solve IB ACIO Mock Tests and PYQs. It can give them a reality check of their preparation strategy before facing the actual exam. 

 

Other Links Related to IB ACIO Exam
IB ACIO Recruitment IB ACIO Salary
IB ACIO Syllabus IB ACIO Eligibility Criteria

IB ACIO Syllabus 2025 FAQs

What are the topics covered in the IB ACIO Syllabus 2025?

IB ACIO Syllabus 2025 covers Tier 1 Objective and Tier 2 Descriptive paper topics.

Is there any negative marking in the IB ACIO Tier 1 Exam?

IB ACIO Tier 1 Exam has a negative marking of ¼ mark.

What are the three stages in the IB ACIO Exam Pattern 2025?

IB ACIO Exam Pattern 2025 covers two stages, i.e. Tier 1 and Tier 2.

Is the IB ACIO Tier 2 Exam conducted offline?

The Candidates Tier 2 Exam is a Descriptive Paper conducted through the offline mode. Essay Writing and comprehension-based questions are asked in the paper.

What is the format of the IB ACIO Tier 1 Exam?

Candidates get 100 questions in the IB ACIO Tier 1 Exam to solve in 1 hour. All the questions are objective-based.
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