Latest update — 6 October 2026
This guide supports CDS 2026–27 preparation using the latest published CDS II scheme and official papers. CDS I 2027 is provisionally scheduled for 11 April; its notification is planned for 2 December 2026.
At a glance
| Item | Details |
|---|---|
| Latest examination | CDS II 2026, held 13 September |
| Next calendar date | CDS I 2027, 11 April; tentative |
| Current syllabus reference | CDS II 2026 official notification; recheck the next notification |
| Academy choice | OTA uses English and GK; IMA/INA/AFA also require Mathematics |
What to use for the current session
Use the most recent official syllabus and the actual question papers for practice. Keep academy-specific eligibility and paper combinations together. The 2027 calendar supplies planning dates; it does not confirm new vacancies or carry forward birth-date cut-offs.
Official notification and syllabus PDF
Detailed guide: CDS 2026–27: Notification, Exam Dates, Eligibility, Syllabus & Latest Updates
Detailed guide: CDS General Knowledge Preparation 2026–27: Syllabus & Revision
CDS official detailed notification and Appendix I
CDS written papers at a glance
| Item | Details |
|---|---|
| IMA, INA and AFA | English, General Knowledge and Elementary Mathematics; 100 marks and 2 hours for each paper |
| OTA | English and General Knowledge only; 100 marks and 2 hours each |
| Question format | Objective; GK and Mathematics booklets are in Hindi and English |
| Wrong-answer penalty | One-third of the marks assigned to the question; no penalty for a blank answer |
Related guides and official practice papers
Current CDS eligibility · Complete examination pattern · Subject syllabus · Official previous-paper library.
Choose the correct year, session and subject. An official question paper is not automatically an answer key. Keep coaching explanations separate from UPSC-issued keys, and do not carry an old application deadline into a future study plan.
Confirm that Mathematics is in your combination
IMA, INA and AFA use the Mathematics paper; OTA does not. For the three-paper entries, the paper is worth 100 marks and lasts two hours. The notification specifies matriculation-level content.
Build the foundations
Work through number operations, fractions, ratios and basic algebra before relying on timed shortcuts. Keep formula notes for geometry, mensuration and trigonometry, with an example showing the conditions under which each formula applies.
Practise by error type
Separate calculation slips, concept gaps and misunderstood wording. Re-solve missed questions without looking at the solution, then test the same concept in a different question. An answer remembered from a previous attempt is not evidence that the method is understood.
Progress to mixed and timed work
Begin with untimed accuracy where concepts are weak, then introduce timed sets and full official papers. Simulate the restriction on calculators. Choose questions deliberately and account for the one-third wrong-answer penalty when analysing performance.
Use a sustainable review cycle
Revisit difficult topics after a gap, and keep English and GK in the weekly schedule. There is no universal number of questions per day that guarantees qualification; increase practice only when it remains possible to review it properly.
2027 session planning
| Item | Details |
|---|---|
| CDS I / NDA I notification | 2 December 2026 |
| CDS I / NDA I application deadline | 22 December 2026 |
| CDS I / NDA I examination | 11 April 2027 |
| CDS II / NDA II notification | 12 May 2027 |
| CDS II / NDA II application deadline | 1 June 2027 |
| CDS II / NDA II examination | 19 September 2027 |
The calendar provides dates. The next notification must establish its vacancies, eligibility cut-offs and application rules.
Related preparation resources
CDS previous-year papers · CDS syllabus checklist · 3- and 6-month study plans · CDS cut-off guide. Begin with the academy-specific paper combination, then practise official questions under each paper’s time limit.
Official sources
Checked on 6 October 2026. Later official amendments take precedence. Preparation plans are GovtAdhikari editorial guidance.
Frequently asked questions
Does a preparation plan guarantee selection?
No. Written qualification, SSB, medical suitability, eligibility and available vacancies all matter.
Is Mathematics required for OTA?
Not in the OTA written examination. Candidates seeking IMA, INA or AFA take it under the cited scheme.
Can I use the same rules for a later examination?
Use this as preparation guidance and recheck the notification for the actual session you enter.