The Combined Defence Services (CDS) exam is one of the most prestigious defence entrance exams in India. Conducted twice a year, it opens the gateway to becoming an officer in the Indian Armed Forces. If you are serious about joining the defence forces, this Complete Guide for CDS I and Complete Guide for CDS II will help you understand everything—from eligibility to preparation strategy.
At GAPS SSB, aspirants are trained not only for the CDS written exam but also for the SSB interview, ensuring complete preparation.
What is the CDS Exam?
The CDS exam is conducted by UPSC to recruit candidates for:
- Indian Military Academy (IMA)
- Indian Naval Academy (INA)
- Air Force Academy (AFA)
- Officers Training Academy (OTA)
The selection process includes:
- Written Examination
- SSB Interview
This Complete Guide for CDS I and Complete Guide for CDS II will help you navigate both stages effectively.
CDS Exam 2026 Important Dates
CDS I 2026
- Notification Release: 10 December 2025
- Application Last Date: 30 December 2025
- Exam Date: 12 April 2026
CDS II 2026
- Notification Release: June 2026 (Expected)
- Application Last Date: July 2026 (Expected)
- Exam Date: 13 September 2026
This Complete Guide for CDS II ensures you stay updated with timelines and plan your preparation accordingly.
CDS Exam 2026 Eligibility Criteria
Nationality
- Citizen of India
- Subject of Nepal/Bhutan
- Tibetan refugee (as per rules)
Educational Qualification
- IMA & OTA: Graduation from a recognized university
- INA: Engineering Degree
- AFA: Graduation with Physics & Mathematics at 10+2 level or Engineering
Understanding eligibility is a key step in this Complete Guide for CDS I and helps avoid application errors.
CDS Age Limit 2026
| Academy | Age Limit | Gender |
|---|---|---|
| IMA | 19–24 years | Male |
| INA | 19–22 years | Male |
| AFA | 19–23 years | Male |
| OTA | 19–25 years | Male & Female |
CDS Exam Pattern 2026
For IMA, INA & AFA
| Subject | Marks | Duration |
|---|---|---|
| English | 100 | 2 Hours Each |
| General Knowledge | 100 | |
| Mathematics | 100 | |
| Total | 300 | 6 Hours |
For OTA
| Subject | Marks |
|---|---|
| English | 100 |
| General Knowledge | 100 |
| Total | 200 |
Note: Mathematics is not required for OTA candidates. This is an important detail in the Complete Guide for CDS II.
CDS Exam 2026 Syllabus
English
- Vocabulary & Grammar
- Sentence Improvement
- Comprehension
- Synonyms & Antonyms
- Error Detection
General Knowledge
- History & Geography
- Polity & Constitution
- Economy & Current Affairs
- Defence & National Security
- General Science
Mathematics (10+2 Level)
- Arithmetic & Algebra
- Geometry & Trigonometry
- Mensuration
- Statistics & Probability
A clear understanding of the syllabus is essential in both the Complete Guide for CDS I and Complete Guide for CDS II.
How to Prepare for CDS Exam 2026
1. Understand the Exam Pattern
Start by analyzing the syllabus and previous year papers.
2. Build Strong Basics
Use standard books to strengthen concepts, especially for Mathematics and General Knowledge.
3. Focus on Current Affairs
Daily awareness of national and defence-related news is crucial.
4. Practice Regularly
Solve mock tests and previous papers weekly.
5. Prepare for SSB Interview
The SSB interview is equally important. Focus on:
- Communication skills
- Leadership qualities
- Physical fitness
- Psychological tests
- Group discussions
At GAPS SSB, candidates receive structured training for both written exams and SSB interviews.
Importance of SSB Preparation
Clearing the written exam is only half the journey. The SSB interview tests your personality and officer-like qualities.
At GAPS SSB, special focus is given to:
- Psychology tests (TAT, WAT, SRT)
- GTO tasks
- Personal Interview guidance
- Real-time practice sessions
This makes GAPS SSB a strong support system for candidates following this Complete Guide for CDS I.
Why Choose GAPS SSB?
Choosing the right guidance can make a huge difference.
Key Features:
- Expert mentorship by experienced trainers
- Complete CDS + SSB preparation
- Personality development sessions
- Mock interviews and practice tests
- Proven track record of selections
Whether you are preparing through this Complete Guide for CDS II or CDS I, structured training at GAPS SSB can boost your success rate.
Final Thoughts
The CDS exam is a golden opportunity to serve the nation as an officer. With proper planning, discipline, and guidance, success is achievable.
This Complete Guide for CDS I and Complete Guide for CDS II provides everything you need—from eligibility to preparation strategy. Stay consistent, work hard, and focus on both written and SSB stages.
With the right preparation and support from GAPS SSB, your dream of joining the Armed Forces can become a reality.
