IB ACIO Syllabus 2026 – Topic-wise Pattern & PDF | JobOne.in

The Intelligence Bureau (IB) has released the detailed syllabus for the IB ACIO Exam 2026. Candidates can download the official syllabus PDF to understand the exam structure, subject-wise topics, and preparation tips. This guide helps aspirants plan their studies effectively and excel in the recruitment process.

Each correct answer carries 1 mark, with a negative marking of 0.25 marks for wrong answers. The exam is bilingual, available in English and Hindi. Additionally, there is a Tier 2 descriptive paper covering essay and comprehension sections.

1. Current Affairs & General Awareness

• National & International Events (Last 6-12 months)
• Government Schemes & Policies
• Sports, Awards & Honours
• Science & Technology Developments
• Defence & Security News
• Books, Authors & Important Days
• Economy & Budget

2. General Studies

• Indian History (Ancient, Medieval & Modern)
• Indian Polity & Constitution
• Geography (Physical, Economic & Social)
• Indian Economy
• General Science (Physics, Chemistry, Biology)
• Environmental Issues & Ecology

3. Quantitative Aptitude

• Number System, Simplification
• Percentage, Ratio & Proportion
• Profit & Loss, Simple & Compound Interest
• Time & Work, Distance & Time
• Average, Mensuration
• Data Interpretation (Tables, Graphs)
• Algebra & Geometry Basics

4. Reasoning & Logical Aptitude

• Analogies, Classification & Series
• Coding-Decoding, Blood Relations
• Puzzles & Seating Arrangements
• Syllogism, Statement & Conclusions
• Direction Sense, Order & Ranking
• Input-Output, Data Sufficiency
• Visual Reasoning

5. English Language

• Reading Comprehension
• Grammar (Tenses, Articles, Prepositions)
• Vocabulary (Synonyms, Antonyms, One Word Substitution)
• Error Detection & Sentence Correction
• Cloze Test, Fill in the Blanks
• Idioms & Phrases, Para Jumbles

Prioritize high-weightage topics such as current affairs (last 6-12 months), polity, history, economy, reasoning puzzles, and data interpretation. Follow a structured study plan, practice previous year papers, and take mock tests regularly. Use recommended books like Lucent’s General Knowledge and R.S. Aggarwal Reasoning.

• General Knowledge & Current Affairs: Lucent’s General Knowledge + Monthly Magazines
• Reasoning: A Modern Approach to Verbal & Non-Verbal Reasoning by R.S. Aggarwal
• Quantitative Aptitude: Quantitative Aptitude for Competitive Examinations by R.S. Aggarwal
• English: Objective General English by S.P. Bakshi

• Q1: Where can I download the IB ACIO Syllabus 2026 PDF?
• A1: From the official MHA/IB website or download the direct PDF link.
• Q2: What is the exam pattern for IB ACIO 2026?
• A2: Tier 1: 100 MCQs for 100 marks; Tier 2: descriptive for 50 marks; Negative marking applicable.
• Q3: Is there negative marking in IB ACIO?
• A3: Yes, 0.25 marks deducted for each wrong answer in Tier 1.
• Q4: Which subjects are included in the syllabus?
• A4: Current Affairs, General Studies, Quantitative Aptitude, Reasoning, and English Language.