The UPSC 451 CDS-1 EXAM 2026 is making waves across India’s defence prep communities as the Union Public Service Commission (UPSC) has officially released its notification with 451 vacancies for aspiring officers. This article compiles all the latest news, application details, eligibility requirements, and exam insights you need to succeed.
What Is the UPSC 451 CDS-1 EXAM 2026?
Understanding CDS and Its Purpose
The Combined Defence Services (CDS) Exam is a national-level test conducted by UPSC to induct candidates into India’s defence academies — including the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA), and Officers’ Training Academy (OTA). It’s a prestigious gateway for graduates and final-year students aiming for a commissioned officer career in the armed forces.
Latest Official Notification Highlights
Notification Release Date & Official Source
The UPSC CDS-1 Exam 2026 official notification was released on December 10, 2025, through the UPSC portal upsc.gov.in. Aspirants can read the full PDF on the official site to verify all eligibility and exam instructions.
Total Vacancies: 451 Posts
This year’s recruitment drive covers 451 officer vacancies across multiple defence academies. The breakup includes seats for male and female candidates across technical and non-technical entries.
Important Dates You Must Bookmark
Application Start & End Dates
The online application window opened on December 10, 2025, and will close on December 30, 2025 (6:00 PM IST). Candidates must complete the submission by this deadline to be eligible.
Exam Date and Expected Admit Card
As per the UPSC exam calendar, the CDS-1 written exam will take place on April 12, 2026. The admit cards are expected to be released a few weeks before the exam.
Who Can Apply? Eligibility Criteria Explained
Nationality & Age Requirements
Candidates should be Indian citizens or meet specified nationality conditions (Nepalese, Bhutanese, etc.) under UPSC rules. Age limits vary by academy; generally, applicants must be between 19–24 years with specific variations depending on the academy and entry type.
Educational Qualifications
IMA & OTA: Bachelor’s degree in any discipline
INA: Engineering graduates (B.E./B.Tech)
AFA: Degree with Physics & Maths or equivalent engineering degree
Application Process Step-by-Step
How to Register Online
Visit the official UPSC site (nic.in).
Complete the One-Time Registration (OTR).
Fill Part-I and Part-II application forms.
Upload required documents.
Pay the application fee and submit.
Download confirmation for future reference.
Application Fee Structure
The application fee is ₹200 for General and OBC candidates; however, SC/ST, PWD, and female candidates are exempt from fees. Payment options include debit/credit card, net banking, or UPI.
Examination Pattern & Subjects
Written Test Structure
The CDS written exam includes objective papers on:
English
General Knowledge
Elementary Mathematics (for IMA, INA, AFA)
Each paper carries equal weight and features multiple-choice questions.
SSB Interview & Selection Process
Candidates who qualify the written test are invited for the SSB interview, assessing officer-like qualities, followed by medical tests before final selection.
Vacancies Breakdown by Academy
2026’s 451 seats are spread across:
IMA – Indian Military Academy
INA – Indian Naval Academy
AFA – Air Force Academy
OTA – Officers’ Training Academy
Exact academy-wise distribution will be reflected in the official PDF.
Conclusion
The UPSC 451 CDS-1 EXAM 2026 presents a significant opportunity for defence aspirants nationwide. With the notification officially out, now is the perfect time to shortlist your eligibility, complete your application before December 30, 2025, and begin structured preparation for April 12, 2026. Prioritize reading the official notification on upsc.gov.in to avoid mistakes — and stay consistent with your study plan!
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