CDS Syllabus 2026: English, Maths & GK Topics + PDF

The cds syllabus for 2026 is set by UPSC and covers three subjects for IMA/INA/AFA candidates — English (100 marks), Elementary Mathematics (100 marks) and General Knowledge (100 marks) — while OTA candidates write only English and General Knowledge (200 marks total, no Maths). Mathematics is at the Class 10 (Matriculation/CBSE) level, English and GK are pitched at graduate level, all papers are objective MCQs with one-third negative marking, and the written exam is followed by the SSB interview. This guide gives you the complete, fully on-page, subject-wise and topic-wise CDS syllabus 2026 with marks weightage, plus how to download a CDS syllabus PDF.

CDS Syllabus 2026 at a Glance (Key Facts)

If you only read one section, read this. The table below answers the most-searched questions about the cds syllabus 2026 in one place, then the rest of the guide expands each point with topic-wise detail.

CDS 2026 Overview: What the Exam Is

The Combined Defence Services (CDS) Examination is conducted twice a year by the Union Public Service Commission (UPSC) to recruit officers into the Indian Armed Forces. The two cycles — CDS 1 (notification in December, exam in April) and CDS 2 (notification in May, exam in September) — are identical in syllabus and pattern; only the calendar and the number of vacancies differ. Candidates choose one or more of the four academies based on eligibility:

So the most important rule to remember about the cds syllabus 2026: IMA, INA and AFA aspirants write three papers including Elementary Mathematics, whereas OTA aspirants write only English and General Knowledge. Women candidates are currently eligible only through the OTA (SSC) entry, which is why the OTA syllabus matters to every female aspirant.

Is the CDS syllabus changing for 2026? UPSC has not announced any change to the subject list or topic coverage for 2026; the syllabus published in the notification has stayed stable for years. Always cross-check the topic tables in this guide against the latest official notification before your exam, but expect continuity rather than surprises.

CDS Exam Pattern 2026 (IMA, INA, AFA)

For the three full-academy entries, the written stage has three papers of 100 marks each, two hours per paper, with one-third (0.33) negative marking for every wrong answer. All questions are objective-type multiple choice.

CDS OTA Exam Pattern 2026

The cds ota syllabus uses only two papers and no Mathematics. The SSB for OTA carries 200 marks instead of 300.

Is there negative marking in CDS? Yes — one-third of the marks assigned to a question are deducted for each wrong answer in every paper, so blind guessing hurts. There is no marks deduction for questions left unattempted, which makes intelligent skipping a genuine scoring strategy.

CDS English Syllabus 2026 (Paper I — 100 Marks)

The cds english syllabus tests your command of language and the ability to use words correctly — comprehension plus grammar and vocabulary. UPSC keeps the question style consistent year after year, so the topic list below is reliable for both CDS 1 and CDS 2 2026.

High-yield English areas: Comprehension, Spotting Errors and Synonyms/Antonyms together account for nearly 60% of the paper. Build daily vocabulary and revise the core 50 grammar rules (subject-verb agreement, tenses, prepositions, articles) — these repeat every single year. Because there is no separate descriptive component, every mark here comes from precise, rote-able language skills that reward consistent daily practice over last-minute cramming.

CDS Maths Syllabus Topic Wise 2026 (Paper III — 100 Marks)

The cds maths syllabus topic wise is pegged at the Matriculation / Class 10 level. Is CDS maths tough? The concepts are school-level, but the paper is calculation-heavy and time-pressured (100 questions in 120 minutes), so speed and accuracy matter more than difficulty. Below is the complete topic-wise breakdown with indicative weightage based on previous-year trends.

Which Maths topics give the highest return? Arithmetic is the single biggest scoring block — master percentages, ratio, interest and time-speed-distance first. Mensuration and Trigonometry are formula-driven and quick to score once memorised. Solving 10 years of previous papers is the fastest way to crack the recurring question patterns; a structured topic-wise PYQ toolkit is invaluable for spotting which question types repeat. A practical target is to finish the easy Arithmetic and Mensuration questions in the first 60 minutes, leaving the remaining hour for Algebra, Trigonometry and Geometry — that pacing alone lifts most candidates above the cut-off.

CDS GK Syllabus 2026 (Paper II — 100 Marks)

The cds gk syllabus is the broadest paper, spanning the humanities, sciences, defence and current events. UPSC describes it as testing matters of everyday observation and general awareness expected of an educated person. Here is the subject-wise split with typical weightage.

Highest-weightage GK areas: General Science (Physics + Chemistry + Biology) and Current Affairs together make up roughly 40–45% of the paper, followed by History and Geography. Aspirants consistently report that a rolling current-affairs window of the last 8–10 months is enough for CDS. For the April 2026 (CDS 1) and September 2026 (CDS 2) papers, focus your current-affairs revision on roughly July 2025 to March 2026 events. A monthly magazine such as Vision IAS Current Affairs (January 2026) keeps this window covered without over-reading.

CDS OTA Syllabus 2026 (No Maths — 200 Marks)

OTA candidates (including all women candidates, who are eligible only for OTA) write a lighter exam. Is Maths required for OTA? No — the cds ota syllabus has only two papers:

• English (100 marks, 2 hours) — identical syllabus to the IMA/INA/AFA English paper above: comprehension, error spotting, synonyms/antonyms, idioms, sentence ordering and improvement.
• General Knowledge (100 marks, 2 hours) — identical to the GK syllabus above: History, Geography, Polity, Economy, Science, Environment, Defence and Current Affairs.

Because Mathematics is dropped, OTA aspirants can channel all their preparation time into vocabulary, grammar accuracy and current affairs — the two areas that decide the cut-off. The trade-off is that with only two papers, every mark counts more, and the absence of a calculation-based scoring paper means the OTA cut-off in English and GK tends to run competitive.

Is the CDS 1 and CDS 2 Syllabus the Same?

Yes — the CDS 1 and CDS 2 syllabus is completely identical. UPSC does not publish a separate syllabus for the two cycles; the only differences are the exam dates, the notification windows and the number of vacancies declared by the Services. Study one syllabus and you are prepared for both. This is a common point of confusion among first-time aspirants — there is no “CDS 2 extra portion” to worry about. The practical implication: if you miss the CDS 1 attempt or fall short, your entire preparation carries forward to CDS 2 in the same year without any change of plan.

High-Yield vs Low-Yield Topics (PYQ Trend Analysis)

One thing most CDS syllabus pages miss is telling you where to spend your hours. Based on the pattern of previous-year papers, here is a practical priority map.

Roughly 70% of every CDS paper is built from these high-yield blocks, which is why disciplined previous-year practice outperforms reading new sources endlessly. Aspirants who already prepare for UPSC Prelims have a strong overlap in History, Polity and Economy — the same economics notes and standard GS booklets serve double duty for CDS GK.

Best Books & Study Material Mapped to the CDS Syllabus

Match your material to the syllabus section rather than buying everything. Here is a clean mapping you can act on.

Because CDS GK overlaps heavily with the UPSC General Studies foundation, study material built for UPSC works extremely well. The Forum IAS Topic-Wise PYQ Toolkit (1992–2025) sharpens your factual recall across History, Polity, Geography and Science, while a current-affairs magazine such as Vision IAS Current Affairs (November 2025) keeps the dynamic GK portion handled. For the economy questions, focused Vision IAS Economics notes cover budget, banking and schemes in exam-ready depth.

90-Day CDS Preparation Timeline Tied to the Syllabus

A syllabus only helps if it is converted into a schedule. Here is a 90-day plan that maps directly onto the cds syllabus 2026 for IMA/INA/AFA aspirants (OTA candidates simply remove the Maths block and add the freed time to English and GK).

SSB Interview & Medical Standards

Clearing the written exam only qualifies you for the Services Selection Board (SSB) interview — 300 marks for IMA/INA/AFA and 200 for OTA. The SSB is a five-day, two-stage process:

Candidates recommended at the SSB must then clear the medical examination, which checks vision, height/weight ratio, hearing and overall fitness as per Service standards. Final merit is built from written marks plus SSB marks, so neither stage can be neglected.

How to Download the CDS Syllabus PDF

For an official cds syllabus pdf download, the authoritative source is the CDS examination notification published on the UPSC website (upsc.gov.in), which contains the complete subject-wise syllabus in its appendix. Steps:

• Visit upsc.gov.in and open the “Examinations → Active Examinations” or “What’s New” section.
• Click the CDS Examination (I) or (II) 2026 notification PDF.
• Scroll to the syllabus appendix for English, General Knowledge and Elementary Mathematics.
• Save the PDF for offline planning.

You can also keep the on-page topic tables above as your working checklist — they reproduce the full CDS syllabus 2026 without any portion being gated behind a download. Pair the syllabus PDF with a topic-wise PYQ set and a current-affairs magazine and your subject coverage is complete.

Common Mistakes CDS Aspirants Make

• Ignoring negative marking — guessing without elimination steadily erodes the score; attempt only when you can rule out two options.
• Over-reading current affairs — a focused 8–10 month window is enough; chasing every news item wastes time.
• Skipping Maths speed practice — the concepts are easy, but without timed practice you will not finish 100 questions in 120 minutes.
• Neglecting English vocabulary — synonyms, antonyms and idioms are pure rote-scoring areas that aspirants leave too late.
• Treating CDS 1 and CDS 2 differently — the syllabus is identical; build one preparation plan and reuse it.

Frequently Asked Questions

What is the syllabus of the CDS exam?

The CDS syllabus has three subjects for IMA/INA/AFA — English (comprehension, grammar, vocabulary), Elementary Mathematics (Arithmetic, Algebra, Trigonometry, Geometry, Mensuration, Statistics at Class 10 level) and General Knowledge (History, Geography, Polity, Economy, Science, Environment, Defence and Current Affairs). OTA candidates write only English and GK.

Is CDS maths tough and what is its level?

CDS Elementary Mathematics is at the Matriculation / Class 10 level, so the concepts are not difficult. The challenge is speed and accuracy — 100 objective questions in 120 minutes with negative marking — so timed practice on Arithmetic and Mensuration matters more than the difficulty of the topics.

Is the CDS 1 and CDS 2 syllabus the same?

Yes, the CDS 1 and CDS 2 syllabus is exactly the same. UPSC does not publish separate syllabi for the two cycles; only the exam dates, notification windows and number of vacancies differ. One preparation plan covers both.

How many papers are there in the CDS exam and how many marks?

IMA, INA and AFA candidates write three papers (English, GK, Elementary Mathematics) of 100 marks each — 300 marks total, two hours per paper — followed by a 300-mark SSB interview. OTA candidates write two papers (English and GK), 200 marks total, with a 200-mark SSB.

Is there negative marking in the CDS exam?

Yes. One-third (0.33) of the marks assigned to a question is deducted for every wrong answer in all CDS papers. Unattempted questions carry no penalty, so it is safer to skip a question than to guess blindly.

What is the OTA syllabus in CDS and is Maths required?

The CDS OTA syllabus has only two papers — English and General Knowledge, 100 marks each (200 total) — and there is no Elementary Mathematics paper. The English and GK topics are identical to the IMA/INA/AFA papers, so OTA aspirants (including all women candidates) can focus entirely on vocabulary, grammar and current affairs.

Which subjects have the highest weightage in the CDS exam?

In GK, General Science and Current Affairs together carry the most weight (about 40–45%), followed by History and Geography. In Maths, Arithmetic is the largest block (25–30%) with Geometry, Algebra and Mensuration next. In English, Comprehension, Spotting Errors and Synonyms/Antonyms dominate. Prioritising these high-yield areas covers roughly 70% of every paper.

How can I download the CDS syllabus PDF for 2026?

Download the official CDS syllabus PDF from upsc.gov.in by opening the CDS Examination (I or II) 2026 notification and going to its syllabus appendix, which lists English, GK and Mathematics topics. The on-page topic-wise tables in this guide also give you the complete subject-wise CDS syllabus 2026 to use as a checklist.

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