The Union Public Service Commission (UPSC) has successfully concluded the CDS 1 2026 written exam at various centers across India. As one of the most prestigious competitive exams in the country, it witnessed thousands of dedicated aspirants competing for a spot as a Commissioned Officer in the Indian Army, Navy, and Air Force.
If you appeared for the exam on April 12, 2026, and are searching for the most accurate CDS 1 2026 Answer Key, you’ve landed on the right page. Centurion Defence Academy is proud to provide the fastest and most reliable answer keys for English, GK, and Mathematics to help you evaluate your performance instantly.
CDS 1 2026 Exam Overview
The CDS written examination is a rigorous test of a candidate’s intellectual and mental aptitude. The paper is structured into three primary sections:
- English: Testing grammar, vocabulary, and reading comprehension.
- General Knowledge (GK): Covering Current Affairs, History, Geography, and Science.
- Elementary Mathematics: Focusing on Algebra, Trigonometry, Geometry, and Arithmetic.
To ensure transparency and exam security, UPSC prepares each paper in four different sets: A, B, C, and D. While the questions remain the same, their order varies across these sets.
Why You Should Check the CDS 1 2026 Answer Key Immediately
Waiting for the official UPSC result can be stressful. Downloading the unofficial CDS answer key by Centurion Defence Academy allows you to:
- Estimate Your Score: Use the marking scheme (+0.83 for English/GK, +1 for Maths) to calculate your probable score.
- Analyze Difficulty Levels: Understand which sections were moderate and which were tricky.
- Plan for SSB: If your estimated score is above the expected CDS 1 2026 cut-off, you can start your SSB Interview preparation without wasting a single day.
- Clarify Doubts: Resolve confusion regarding tricky questions that appeared during the exam.
Download CDS 1 2026 Answer Keys for All Sets (A, B, C, D)
We have organized the answer keys in a user-friendly table format. Simply click the link for your respective subject and set to download the PDF.
CDS 1 2026 Subject-Wise Answer Key PDF
Provisional Answer Key
How to Calculate Your Score Using the Answer Key
To get the most accurate estimate, follow this standard UPSC marking formula:
- For English & GK:
(Correct Answers × 0.83) - (Incorrect Answers × 0.27) - For Mathematics:
(Correct Answers × 1.0) - (Incorrect Answers × 0.33)
What’s Next After the CDS Written Exam?
Once you have verified your answers, the next step is the Service Selection Board (SSB) Interview. At Centurion Defence Academy, we provide specialized coaching to help you crack the OIR, PPDT, and Personal Interview rounds.
Stay tuned for our detailed CDS 1 2026 Paper Analysis and Expected Cut-off list!
