The UPSC CDS 1 (Combined Defence Services Examination) is one of the most prestigious exams for candidates aspiring to join the Indian Armed Forces. Conducted twice a year by the Union Public Service Commission (UPSC), this examination serves as a gateway to the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA), and Officers’ Training Academy (OTA).
This guide will cover everything you need to know about CDS 1, including important dates, eligibility, exam pattern, syllabus, admit card download, results, and more.
UPSC CDS 1 2025: Important Dates
Candidates appearing for UPSC CDS 1 must be aware of all the crucial dates related to the exam cycle. Below are the expected important dates for CDS 1 2025:
| Event | Important Date (Tentative) |
| Official Notification Release | December 11, 2024 |
| Online Application Start Date | December 11, 2024 |
| Last Date to Apply | January 1, 2025 |
| Admit Card Release Date | Expected in first week of April 2025 |
| Exam Date | April 13, 2025 |
| Answer Key Release | April-May 2025 |
| Result Declaration | Expected post 2 months of Exam |
| SSB Interview | July-September 2025 |
UPSC CDS 1 Eligibility Criteria
To apply for UPSC CDS 1, candidates must meet specific eligibility requirements:
1. Nationality:
Candidates must be:
- A citizen of India, or
- A subject of Nepal/Bhutan, or
- A Tibetan refugee who migrated before January 1, 1962.
2. Educational Qualification:
- IMA & OTA: A bachelor’s degree from a recognized university.
- INA: A degree in Engineering from a recognized institution.
- AFA: A degree with Physics and Mathematics at 10+2 level or a B.E./B.Tech degree.
3. Age Limit & Marital Status:
- IMA: 19-24 years (Unmarried males)
- INA: 19-24 years (Unmarried males)
- AFA: 19-24 years (Unmarried males)
- OTA (Men & Women): 19-25 years (Unmarried candidates only)
How to Apply for UPSC CDS 1?
Follow these steps to apply online:
- Visit the UPSC official website: www.upsc.gov.in
- Click on CDS 1 Application Form 2025.
- Register using valid details (email, phone number, etc.).
- Fill in the required academic and personal details.
- Upload scanned documents (photo, signature, ID proof).
- Pay the application fee (₹200 for general category; free for SC/ST/Female candidates).
- Submit the form and take a printout for future reference.
CDS 1 Exam Pattern
The CDS 1 exam consists of three sections for IMA, INA, and AFA, while OTA has only two sections.
Exam Pattern for IMA, INA & AFA:
| Subject | Duration | Marks |
| English | 2 hours | 100 |
| General Knowledge | 2 hours | 100 |
| Elementary Mathematics | 2 hours | 100 |
Exam Pattern for OTA:
| Subject | Duration | Marks |
| English | 2 hours | 100 |
| General Knowledge | 2 hours | 100 |
Key Points:
- Negative marking: 1/3rd marks deducted for incorrect answers.
- Mode of exam: Offline (Pen & Paper based).
How to Download UPSC CDS 1 Admit Card?
Follow these steps to download your CDS 1 Admit Card:
- Visit www.upsc.gov.in.
- Click on the ‘Admit Card’ section.
- Select CDS 1 2025 Admit Card.
- Enter Registration ID/Roll Number and DOB.
- Click on Download and take a printout.
CDS 1 2025 Result & Selection Process
1. Written Exam Result:
- The UPSC CDS 1 result is usually declared within 2 months after the exam.
- Candidates who clear the written exam qualify for the SSB interview.
2. SSB Interview:
- Conducted in two stages: Psychological Aptitude Test & Intelligence Test.
- Physical and medical tests follow after SSB selection.
3. Final Merit List:
- The final merit list is prepared based on the written test + SSB performance.
- Selected candidates undergo training at IMA, INA, AFA, or OTA.
Preparation Tips for UPSC CDS 1
- Know the Syllabus: Be well-versed with English, GK, and Mathematics.
- Time Management: Solve previous years’ papers and take mock tests.
- Stay Updated: Follow current affairs regularly.
- Enhance English Skills: Read newspapers, improve vocabulary.
- Practice Mathematics: Focus on speed and accuracy.
- Physical Fitness: Prepare for medical & SSB interviews.
The UPSC CDS 1 exam is an excellent opportunity for candidates aiming to serve in the Indian Armed Forces. With proper planning, dedication, and consistent efforts, aspirants can successfully crack the exam and move forward towards a prestigious and honorable career in defense services.
Aspiring candidates should keep an eye on official updates from UPSC and stay well-prepared for the upcoming CDS 1 2025 exam.
Also Read, Upcoming Government Exams in April, May, June 2025. NDA 2025 Exam 2 Registration.
