Complete Guide to UPSC CDS 2027 exam date

The official UPSC CDS 2027 exam dates have been released by the Union Public Service Commission on upsc.gov.in. CDS 1 2027 will take place on April 11, 2027, while CDS 2 2027 is scheduled for September 19, 2027. Aspirants must align their preparation timelines with these dates to ace the defense services entry.

What is the Exam?

The Combined Defence Services (CDS) Examination is conducted biannually by the Union Public Service Commission (UPSC) for recruitment into the prestigious officer cadres of the Indian Armed Forces. This includes the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA), and Officers' Training Academy (OTA). Recognized as one of the most challenging yet rewarding defense examinations in India, it evaluates candidates through a rigorous written test followed by the Service Selection Board (SSB) interview, assessing both intellectual acumen and Officer-Like Qualities (OLQs).

Key Highlights 2026

To navigate the examination cycle smoothly, we at ExamBhai have structured the vital parameters of the UPSC CDS 2027 examination framework based on official notifications:

• Exam Conducting Body: Union Public Service Commission (UPSC)
• Frequency: Conducted twice a year (CDS-I and CDS-II)
• CDS-I 2027 Notification Date: December 2, 2026
• CDS-I 2027 Application Last Date: December 22, 2026
• CDS-I 2027 Exam Date: April 11, 2027
• CDS-II 2027 Notification Date: May 12, 2027
• CDS-II 2027 Application Last Date: June 1, 2027
• CDS-II 2027 Exam Date: September 19, 2027
• Mode of Exam: Offline (Pen and Paper-based test)
• Official Portal: upsc.gov.in

Syllabus 2026

A comprehensive understanding of the syllabus is crucial for maximizing scores. The written examination differs slightly depending on whether you are opting for IMA/INA/AFA or the OTA. Below is the breakdown of the core subjects mapped across standard exam guidelines:

Note: Elementary Mathematics is applicable only for IMA, INA, and AFA aspirants. OTA candidates only appear for English and General Knowledge papers.

To test your current preparation levels across these modules, you can practice free mock tests for CDS 2027 on ExamBhai to analyze your strengths and weaknesses.

Exam Pattern

The marking scheme and structure vary based on the military academy you choose. There is a negative marking of 0.33 marks for every incorrect answer marked in the objective-type question papers.

• For IMA, INA, and AFA: Total duration is 6 hours carrying a maximum of 300 marks.
• For OTA (Men and Women): Total duration is 4 hours carrying a maximum of 200 marks.

You can refine your time-management skills and speed under exam conditions when you solve previous year question papers for CDS 2027 on ExamBhai.

Eligibility Criteria

According to guidelines published on upsc.gov.in, candidates must meet strict nationality, age, educational, and physical criteria to qualify:

• Nationality: Must be a citizen of India, a subject of Nepal/Bhutan, or a Tibetan refugee who came over to India before January 1, 1962, with the intention of permanently settling.
• Age Limit:
  • IMA: 19 to 24 years
  • INA: 19 to 22 years
  • AFA: 19 to 23 years
  • OTA (Men & Women): 19 to 25 years
• Educational Qualifications:
  • For IMA and OTA: Graduation degree from a recognized university.
  • For INA: Bachelor's degree in Engineering from a recognized university/institution.
  • For AFA: Graduation degree with Physics and Mathematics at the 10+2 level or a Bachelor of Engineering degree.

Application Process

Applying for the UPSC CDS exam requires candidates to utilize the One-Time Registration (OTR) platform on the official UPSC portal.

1. Visit the official website at upsc.gov.in or upsconline.nic.in.
2. Complete your One-Time Registration (OTR) by filling in basic personal, academic, and contact details.
3. Log in with your credentials and navigate to the 'Active Examinations' tab.
4. Select CDS-I or CDS-II 2027, fill out the application form carefully, and select your preferred examination center.
5. Pay the application fee of INR 200 (exempted for female candidates and candidates belonging to SC/ST categories).
6. Submit the form and save a printout of the confirmation page for future reference.

Preparation Strategy

Cracking UPSC CDS requires a disciplined, multi-layered approach combining written mastery and psychological readiness for the SSB interview.

• Master English Fundamentals: Focus heavily on vocabulary building, grammar rules, and reading editorials daily. Regular grammar practice helps secure high accuracy.
• Stay Updated on Current Affairs: Keep track of national and international developments, defense acquisitions, joint military exercises, and sports over the preceding 12 months.
• Strengthen Quantitative Aptitude: Revisit NCERT textbooks from Classes 6 to 10 for basic concepts in mathematics, focusing on short tricks and mental calculation.
• Evaluate Performance Regularly: Use targeted analytical tools and access sectional quizzes for CDS 2027 on ExamBhai to isolate weak areas and boost confidence.

Cut-Off Trends

Based on historical data compiled from upsc.gov.in, the written examination cut-offs fluctuate depending on paper difficulty and vacancy counts. Typically, securing a safe spot requires scoring above the sectional minimum (which is fixed at a mandatory 20% aggregate per subject):

• IMA: Usually ranges between 130 to 145 marks out of 300.
• INA: Ranges between 115 to 130 marks out of 300.
• AFA: Generally trends higher, between 140 to 155 marks out of 300.
• OTA (Men/Women): Ranges between 85 to 105 marks out of 200.

Frequently Asked Questions

When is the UPSC CDS 1 2027 exam date?

According to the official UPSC calendar, the CDS 1 2027 written examination will be conducted on April 11, 2027.

What is the date for UPSC CDS 2 2027?

The CDS 2 2027 written examination is scheduled to be held on September 19, 2027.

Can female candidates apply for all academies through CDS?

No, female candidates are exclusively eligible to apply for the Officers' Training Academy (OTA) for both Short Service Commission courses.

Is there any negative marking in the CDS written examination?

Yes, a penalty of 0.33 marks is deducted for every incorrect answer marked in the objective paper.

What is the upper age limit for the Indian Military Academy (IMA) entry?

The upper age limit for IMA is 24 years, and candidates must be unmarried at the time of commencement of the course.

Do I need to register separately for CDS-I and CDS-II if I want to attempt both?

Yes, both examinations require separate applications during their respective active registration windows on the UPSC portal.