
Table of Contents
IB JIO Exam 2025 Overview
| Particulars | Details |
|---|---|
| Exam Conducting Authority | Ministry of Home Affairs (MHA), Intelligence Bureau |
| Post | Junior Intelligence Officer (JIO) – Grade II/Technical |
| Exam Mode | Online (Objective) |
| Selection Process | Written Test, Skill Test/Interview, Medical Examination |
| Official Website | mha.gov.in |
IB Junior Intelligence Officer Exam Pattern 2025
The written exam consists of objective-type questions, followed by a skill test. Below is the exam pattern:
Written Exam Pattern
Total Marks: 100
Duration: 2 hours
Type of Questions: Objective (MCQ)
Subjects Covered:
General Awareness
General Studies
Reasoning & Logical Aptitude
Numerical Aptitude
Technical Knowledge (Electronics & Communication/Computer Science)
Skill Test
Candidates qualifying the written test will appear for a Skill Test/Interview, where technical and communication skills are tested.
IB JIO Syllabus 2025 — Section-Wise
1. General Awareness & Current Affairs
This section tests a candidate’s knowledge of national and international events, especially those related to security, intelligence, and technology.
Important Topics:
Current Affairs (National & International)
Indian History, Culture, and Freedom Struggle
Geography of India and World
Indian Polity & Constitution
Science & Technology Developments
Awards, Books & Authors
Important Government Schemes
Defence, Security, and Intelligence Agencies
2. General Studies
General studies focuses on the basic awareness of day-to-day governance and science.
Important Topics:
Indian Economy and Planning
Environmental Issues & Ecology
Basic Science (Physics, Chemistry, Biology)
Indian Agriculture
Social & Cultural Developments
Modern Indian History & National Movement
3. Reasoning & Logical Aptitude
This section measures problem-solving ability and analytical skills.
Important Topics:
Analogies
Coding-Decoding
Blood Relations
Syllogism
Puzzles & Seating Arrangements
Statement & Conclusion
Data Interpretation
Direction & Distance
Series (Number/Alphabet/Logical)
4. Numerical Aptitude
The numerical ability section checks basic mathematical and quantitative skills.
Important Topics:
Simplification & Approximation
Percentage, Profit & Loss
Ratio & Proportion
Time, Speed & Distance
Time & Work
Simple & Compound Interest
Probability & Permutations
Data Interpretation (Graphs, Charts, Tables)
Mensuration & Geometry
5. Technical Knowledge (Core Subject)
This is the most important part of the exam, focusing on Electronics, Computer Science, and Communication Engineering, as most JIO posts are technical.
For Electronics & Communication:
Basics of Electronic Devices and Circuits
Digital Electronics
Microprocessors & Microcontrollers
Signals and Systems
Analog Communication & Digital Communication
Wireless Communication
Satellite & Mobile Communication
Network Theory
For Computer Science:
Computer Fundamentals
Operating Systems
Database Management Systems (DBMS)
Data Structures & Algorithms
Computer Networks
Cyber Security Basics
Programming Languages (C, C++, Java, Python – basics)
Internet of Things (IoT) & Artificial Intelligence (basics)
IB JIO Preparation Tips
Understand the Exam Pattern First – Allocate study hours section-wise.
Focus on Technical Knowledge – Since this carries the highest weightage.
Daily Current Affairs – Read newspapers, security-related updates, and technology news.
Mock Tests & Previous Papers – Solve past year questions to understand exam trends.
Time Management – Practice solving reasoning and numerical aptitude quickly.
Download IB JIO Syllabus 2025 PDF
Candidates can download the detailed IB JIO Syllabus PDF 2025 from the official MHA website under the recruitment section. The PDF contains topic-wise breakdowns for reference.
FAQs on IB JIO Syllabus 2025
Q1. What is the selection process for IB JIO 2025?
The selection process includes a written exam, skill test/interview, and medical examination.
Q2. What subjects are included in the IB JIO exam syllabus?
General Awareness, General Studies, Reasoning, Numerical Aptitude, and Technical Knowledge (Electronics/Computer Science).
Q3. How much weightage does the technical section carry?
The technical knowledge section carries maximum weightage, making it the most important part of the exam.
Q4. Is there negative marking in IB JIO 2025 exam?
Yes, there is usually negative marking for wrong answers. The official notification specifies the marking scheme.
Q5. Where can I download the IB JIO Syllabus PDF?
You can download it from the official MHA website (mha.gov.in) under the recruitment tab.
Final Words
The IB JIO Syllabus 2025 is a mix of general awareness, reasoning, and technical knowledge. Since the post demands strong technical expertise, aspirants should prioritize Electronics, Communication, and Computer Science topics while also keeping up with current affairs and aptitude practice. With a strategic study plan and regular practice, cracking the IB Junior Intelligence Officer Exam 2025 is achievable.

