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CDS

The Combined Defence Services examination, known as CDS, is a national-level recruitment examination conducted by the Union Public Service Commission (UPSC). It is the gateway for admission to the Indian Military Academy, Officers Training Academy, Indian Naval Academy and Air Force Academy, leading to officer-level entry in the Indian Armed Forces. CDS is generally conducted twice a year and consists of a written examination followed by an SSB interview. It is a popular route for graduates aspiring to become commissioned officers in the Army, Navy and Air Force. This page covers complete CDS details – eligibility, exam pattern, important dates, application process and preparation tips.

CDS Important Dates

Application Start
10 Dec 2025
Last Date to Apply
30 Dec 2025
Admit Card
04 Apr 2026
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About CDS

CDS is a national-level exam conducted by UPSC for officer entry into the Indian Military Academy, Officers Training Academy, Indian Naval Academy and Air Force Academy.

What is CDS?

  • National-level exam for officer entry into the defence services.
  • Conducted by the Union Public Service Commission (UPSC).
  • Leads to IMA, OTA, INA and AFA.
  • Includes a written exam and an SSB interview.

CDS Highlights

FeatureDetails
Exam NameCombined Defence Services Examination (CDS)
Conducting BodyUnion Public Service Commission (UPSC)
Exam LevelNational
FrequencyTwice a year
ModeOffline (written) with SSB interview
Posts OfferedOfficer entry into Army, Navy and Air Force academies
Official Websiteupsc.gov.in

CDS Exam Pattern

  • Written examination with papers such as English, General Knowledge and Elementary Mathematics (as applicable to the academy).
  • Objective-type questions.
  • Followed by SSB interview and personality assessment.
  • Refer to the official notification for exact marks, question count and duration.

CDS Eligibility

  • Bachelor's degree from a recognised university (specific subjects for certain academies).
  • Age and marital status criteria as specified.
  • Must meet physical and medical standards.
  • Refer to the official notification for detailed eligibility.

CDS Selection Process

  1. Qualify the written examination.
  2. Clear the SSB interview and personality test.
  3. Pass the medical examination.
  4. Final selection based on combined merit.

How to Apply for CDS

  1. Visit upsc.gov.in.
  2. Register on the online application portal.
  3. Fill the application form.
  4. Upload photograph, signature and documents.
  5. Pay the application fee online.
  6. Submit and print the confirmation page.

How to Prepare for CDS

  • Strengthen English, General Knowledge and Mathematics.
  • Follow current affairs and defence-related news.
  • Maintain physical fitness for the SSB stage.
  • Solve previous years' question papers.

Frequently Asked Questions

Who conducts the CDS exam?

The Union Public Service Commission (UPSC).

How often is CDS held?

Twice a year.

Which academies does CDS lead to?

IMA, OTA, INA and AFA.

Is there an interview in CDS?

Yes, qualified candidates appear for the SSB interview.

What is the basic qualification for CDS?

A bachelor's degree, with specific requirements for certain academies.