IB ACIO Books, Study Material for IB Exam 2021

IB ACIO Books, Study Material for Exam

Intelligence Bureau under ministry of home affairs has invited application for Assistant Central Intelligence Officer Grade-II/Executive Exam 2021. This IB ACIO Recruitment 2021 is for total 1300 posts. After release of IB ACIO Recruitment Notification candidates searching for IB ACIO Books, IB ACIO Preparation Material free download, Study Material, IB ACIO Previous Papers, Intelligence Bureau Exam Books, Books for IB ACIO Exam etc. In this article we are providing exam pattern and recommended books for IB ACIO exam 2021. Eligible candidates must apply for this exam on or before 2/9/2021. For IB ACIO Exam any graduate is eligible. Age limit is 18-27 years.

IB ACIO Selection process

Before choosing IB ACIO Books we must know selection process and exam pattern. IB ACIO is two tier exam. Tier 1 is objective type exam for having 1/4th negative marking. candidate who crack tier 1 exam will be called for tier 2 exam. Tier 2 exam is descriptive type. Candidates will be shortlisted for interview based on their combine performance in tier 1 and tier 2. Final merit list is based on tier 1, tier 2 and interview.

IB ACIO Exam Pattern

TIER 1 EXAM – Objective

  • Total Marks – 100
  • Time – 60 minutes
  • General Awareness – 25
  • Quantitative Aptitude – 25
  • Logical Reasoning – 25
  • English – 25
  • Negative marking of 0.25 marks.

TIER 2 EXAM – Descriptive

  • Total Marks – 50
  • Time – 60 Minutes
  • Essay on one of the given topics – 30 marks
  • English comprehension & Precise Writing – 20 Marks.

INTERVIEW – 100 Marks 

Recommended Books for IB ACIO EXAM, IB ACIO BOOKS

As we seen tier 1 is having four subjects. Each subject for 25 marks. Many candidates asking how to  prepare for IB ACIO Exam, Preparation tips for IB Exam / Inteligence bureau exam  preparation. Here we are covering few tips on each subject of IB ACIO Tier 1 and Subject wise IB ACIO Teir 1 books.

IB ACIO TIER 1 Books – 

If you are looking for all in one book for IB ACIO Tier 1  exam then

Use ” IB -Assistant Central Intelligence Officer’s Exam guide “. This is all in one best book for ib acio exam.


Master Guide of IB ACIO in Hindi ” is best. This covers all syllabus of IB ACIO with practice questions.

Or use “ Master Guide of IB in English

General Awareness – 

25 question for general awareness normally based on current affairs, history, geography, polity. This section is very important, most of candidates ignore this section and score less marks exam. we recommend to use          ” Lucent’s General Knowledge book 2021 “. It covers all topics on General Awareness.

Quantitative Aptitude –

This is most time consuming section in tier 1. Remember you have 60 minutes for 100 questions. You need to be very fast in solving tricky problems. Don’t waste more time on single problem, skip that ad move forward. For Quantitative Aptitude we recommend to use ” Quantitative Aptitude by  R S Aggarwal

For more shortcuts and tricks use ” Magical book on quicker maths by M.Tyra

Logical / Analytical Ability – 

This is most scoring subject in IB ACIO Tier 1 Exam. You can score full 25 marks in this section. But for that you need a lot of practice. We recommend to use ” Modern approach to verbal and non verbal reasoning by R S Aggarwal


Most of candidates who completed their primary education in local language struggle in English. Read daily English Newspaper, Improve vocabulary. To practice objective questions on English. We Recommend to use       ” Objective General English by S.P Bakshi

These are some good Books for IB ACIO EXAM 2021. If you have any query ask in comment section.


4 thoughts on “IB ACIO Books, Study Material for IB Exam 2021”

  1. Hello Ma’am/Sir,

    As the time is not much left for the preparation, which books shall i consult for the brief of Quantitative aptitude, English, Reasoning and GA in one?

    I am very much eager for this exam. As I am working in private organization I don’t have any description of public sector.

    Please help in guiding!

    Thanks in advance!

  2. Other than VVK SUBBURAJ do we have any other author to refer ” IB -Assistant Central Intelligence Officer’s Exam Guide “


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