Ministry of Home Affairs has released the official notification for the post of Assistant Central Intelligence Officer (ACIO) Grade-II and Executives. The Intelligence Bureau has announced 2,000 vacancies for various posts. Selection of the candidates will be done through Tier I, II, and III exams. Every year IB ACIO release a number of vacancies on various posts, this is a great opportunity for the graduates after pandemic and to serve the reputed organization.

he job location for these posts will be all over India and the candidates can apply from the official website. Interested candidates can become part of the recruitment process by applying for the examination.

IB ACIO Selection Process

There are three phases of the exam, TIER I, II, and III:

  • TIER I  Exam: Online Mode (Objective-based)
  • TIER II Exam: Written Test (Descriptive)
  • TIER III Exam: Interview

IB ACIO Exam Pattern

Tier-1 Exam Pattern

  • As per the IB ACIO Notification 2020 released, there will be a total of 100 questions for 100 marks  from 5 sections; General Awareness, Quantitative Aptitude, Numerical/Analytical/Logical Ability, English Language, and General Studies
  • There is a negative marking of ¼ mark for every incorrect answer in Tier I.
SectionNo. of QuestionsMarksTime Duration
General Awareness202060 Minutes
Quantitative Aptitude2020
Logical/Analytical/Numerical Ability & Reasoning Ability2020
English Language2020
General Studies2020


IB ACIO Tier-2 Exam Pattern

The tier-2 exam is descriptive in nature and carries 2 questions for 50 marks in total.

Essay Writing3060 Minutes
English Comprehension & Précis Writing20

Most Probable Topics For Essay :

  • Security Threats of India
  • Cultural Diversity of the Country
  • Emergency Trends
  • Miscellaneous
  • English Comprehension & Precise Writing: In this section, the candidate’s English Comprehension will be tested.

The Tier III Phase of the exam is the personal interview round. Here, candidates are judged based on their presentation, intelligence, and personality.

IB ACIO Syllabus Tier 1

IB ACIO General Knowledge Syllabus

IB ACIO Syllabus GK Section, The focus will be on Current national & International events, banking, sports, awards, recruitments, etc.

Current AffairsIndian Polity & Constitution
HistoryEconomy & Finance
Static GKChemistry
Science & TechnologyBiology

IB ACIO Syllabus English Comprehension 

These are the topics that can be asked in the examination.

Error DetectionPreposition
SynonymsCloze Test
One-word substitutionPara-Jumble Sentences
Idioms & phrasesGrammar Rules
Fill in the blanksAntonyms
Reading Comprehension/PassageSingle/ Double Fillers
Active & Passive VoiceFill In The Blanks

Analytical Ability IB ACIO Syllabus

Analytical Ability can help you to score more with practice and these are the topics that can be asked in the examination.

Series CompletionAnalogy
Blood Relation TestCharacter Puzzles
Analytical ReasoningPattern Completion
Chart LogicImage Analysis
Data SufficiencyLogical Sequence of Words
Seating ArrangementDirection Sense Test

IB ACIO Numerical Ability Syllabus 

This section is very calculative, total based on the calculations which will help to score, more in the examination and can improve your overall score all well. Let us look at the topics as per the IB ACIO Syllabus 2021.

LCM & HCFSimple and Compound Interest
PercentageTime and Work
AgesTime And distance
Profit And LossFractions
Missing NumbersNumber Series
AveragePrices & Expenditure Problems

IB ACIO Logical Reasoning Syllabus

In this section, the Logical ability of the candidate is checked and this is very important to be concentrate while solving these questions related to puzzles, seating arrangements. These are the topics of the reasoning section as per the IB syllabus 2021.

Statements & AssumptionsOrder & Ranking
DirectionsOdd One Out
Alphanumeric SeriesReasoning Analogies
Blood RelationsCalenders
Artificial LanguageClocks
Coding-DecodingDecision Making
Data SufficiencyStatement and conclusions


IB ACIO Quantitative Aptitude Syllabus

Quantitative aptitude is an integral part of exams  It tests the quantitative skills along with logical and analytical skills. One can test their own number of handling techniques and problem-solving skills by solving these questions. This is the detailed syllabus for the quantitative section.

Time and DistanceComputation of Whole numbers
Ration and ProportionStatistics
InterestFundamental Arithmetical Operations
DiscountReal Analysis
Differential EquationsEssential Mathematics
Use of tables and graphsFundamental Arithmetical Operations
Time and WorkDifferential Geometry
FractionsOperations Research & Linear Programming
Analytical GeometryRelationship between numbers
Number SystemPercentages
Ratio & TimeMensuration
AverageProfit & Loss


Q1. What is the selection process for IB ACIO ?

  1. The exam is in three phases:

TIER I  Exam: Online Mode (Objective-based)

TIER II Exam: Written Test (Descriptive)

TIER III Exam: Interview

Q2. Is there any kind of negative marking in the examination?

  1. Yes. There is a negative marking of ¼ mark for every incorrect answer in Tier I.

Q3. What are the exam dates for the IB ACIO examination?

  1. The exam dates are not announced yet, will be notified soon.

Q4. What should be the first step to start the preparation for IB ACIO?

  1. Before preparing for any exam it is important to get detailed information about the exam pattern and syllabus and everything related to the exam.

Q5. What are the basics to crack the exam?

  1. Daily study, solving previous year question papers, and daily solve one to two mocks to improve your speed and confidence.