IB ACIO 2026 — Intelligence Bureau - Assistant Central Intelligence Officer (Grade-II / Executive) Free Online Mock Test Series

Prepare for Intelligence Bureau - Assistant Central Intelligence Officer (Grade-II / Executive) (IB ACIO) conducted by Ministry of Home Affairs (MHA) with free online mock tests, sectional practice sets, and topic-wise drills on Mock Test Mama. Every practice paper is strictly aligned with the latest official exam pattern (Current Affairs (20 Qs), General Studies (20 Qs), Numerical Aptitude (20 Qs), Reasoning / Logical Aptitude (20 Qs), English Language (20 Qs)), marking scheme, and difficulty profile, complete with detailed step-by-step solutions and instant performance analytics.

Conducted by: Ministry of Home Affairs (MHA) | Pay Scale: As per official 7th CPC / State Pay Matrix & applicable allowances

Official Portal

Tier 1 (100 Questions, 100 Marks, 60 Mins)

  • Current Affairs (20 Questions) — Current Affairs: National and International Current Events, Government Schemes, Summits, Awards and Sports, Union Budget, Economic Survey and Reports | Indian Polity: Constitutional Framework, Fundamental Rights and Duties, Parliament, Union & State Executive and Judiciary, Constitutional and Non-Constitutional Bodies, Panchayati Raj | History: Ancient and Medieval Indian History, Art & Culture, Modern Indian History and Indian National Movement | Geography of India: Physical, Riverine, Climatic and Economic Geography of India, Environment, Biodiversity, Ecology and Climate Change | Indian Economy: National Income, Inflation, Fiscal & Monetary Policy, Banking System, RBI Functions, Financial Inclusion and NITI Aayog | General Science: Everyday Physics, Chemistry and Life Sciences (Biology), Space, Defence, Biotechnology and IT Advancements
  • General Studies (20 Questions) — Current Affairs: National and International Current Events, Government Schemes, Summits, Awards and Sports, Union Budget, Economic Survey and Reports | Indian Polity: Constitutional Framework, Fundamental Rights and Duties, Parliament, Union & State Executive and Judiciary, Constitutional and Non-Constitutional Bodies, Panchayati Raj | History: Ancient and Medieval Indian History, Art & Culture, Modern Indian History and Indian National Movement | Geography of India: Physical, Riverine, Climatic and Economic Geography of India, Environment, Biodiversity, Ecology and Climate Change | Indian Economy: National Income, Inflation, Fiscal & Monetary Policy, Banking System, RBI Functions, Financial Inclusion and NITI Aayog | General Science: Everyday Physics, Chemistry and Life Sciences (Biology), Space, Defence, Biotechnology and IT Advancements
  • Numerical Aptitude (20 Questions) — Arithmetic: Percentages, Profit & Loss, Discount, Ratio & Proportion, Partnership, Mixture & Alligation, Simple & Compound Interest, Time & Work, Pipes & Cisterns, Time, Speed & Distance, Averages, Ages and Number System | Algebra: Simplification and Approximation, Linear and Quadratic Equations, Number Series and Algebraic Identities | Geometry & Modern Math: Mensuration (2D & 3D Figures), Triangles, Circles and Coordinate Geometry, Trigonometry, Permutation, Combination & Probability | Data Interpretation: Tabular, Bar Graph, Line Chart and Pie Chart DI, Caselet Data Interpretation and Data Sufficiency
  • Reasoning / Logical Aptitude (20 Questions) — Logical Reasoning: Syllogism and Coded Inequalities, Blood Relations and Direction & Distance, Order & Ranking and Alpha-Numeric Series, Coding-Decoding and Analogy | Puzzles & Seating Arrangement: Linear and Circular Seating Arrangement, Floor, Box and Scheduling Puzzles, Data Sufficiency and Input-Output | Verbal Reasoning: Statement & Assumptions, Conclusions and Arguments, Cause & Effect and Course of Action, Classification, Venn Diagrams and Non-Verbal Series
  • English Language (20 Questions) — Reading Comprehension: Factual and Narrative Passages, Inference, Central Theme and Tone Questions, Contextual Vocabulary from Passages | Grammar & Usage: Error Detection / Spotting Errors, Sentence Improvement and Correction, Active & Passive Voice, Direct & Indirect Speech, Subject-Verb Agreement, Tenses and Prepositions | Vocabulary: Synonyms and Antonyms, Idioms, Phrases and One-Word Substitution, Cloze Test and Fill in the Blanks, Para Jumbles and Sentence Rearrangement

Frequently Asked Questions

What is the official examination pattern for IB ACIO 2026?

The IB ACIO (Intelligence Bureau - Assistant Central Intelligence Officer (Grade-II / Executive)) examination conducted by Ministry of Home Affairs (MHA) comprises 1 stage(s): Tier 1 (100 Questions, 100 Marks, 60 minutes).

What are the sections and syllabus topics in IB ACIO?

In Tier 1, the paper is divided into 5 section(s): Current Affairs (20 Qs), General Studies (20 Qs), Numerical Aptitude (20 Qs), Reasoning / Logical Aptitude (20 Qs), English Language (20 Qs). Each section tests core conceptual clarity, speed, and analytical application.

Is there negative marking in the IB ACIO exam?

Yes, 0.25 marks are deducted for every incorrect answer, while each correct response awards +1 mark(s). Unattempted questions carry zero penalty.

In which languages is the IB ACIO mock test series available?

IB ACIO is officially supported in English. On Mock Test Mama, you can practice full-length mock tests, sectional tests, and chapter-wise topic drills in your preferred exam language.

How can I attempt a free IB ACIO online mock test with solutions?

You can start a free full-length IB ACIO mock test immediately on Mock Test Mama (mocktestmama.in) by clicking "Start Free Test" on any Full Mock Set, Sectional Test, or Topic Drill card above—complete with a real CBT timer, instant score report, and step-by-step explanations.