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DefenceUnion Public Service Commission

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सीडीएस · CDS: IMA, INA, AFA & OTA

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  • 75chapters
  • 2,525practice questions
  • 3full mock papers
  • EN + हिंevery chapter in both

Also searched as: cds exam · combined defence services · सीडीएस परीक्षा

Quick answers

CDS in one minute

Conducted by
Union Public Service Commission
In Hindi?
Yes — every chapter is in English and Hindi.
Price
First chapter free; the whole course ₹29 a month.

Exam pattern

CDS paper pattern

  • 120 questions
  • 100 marks
  • 120 minutes
  • +0.8333333333333334 per right answer
  • a third of a question's marks off for a wrong answer
  • Grammar, usage and error spotting50 Qs · 41.67 marks
  • Vocabulary, idioms and one-word substitution40 Qs · 33.33 marks
  • Comprehension, cloze and sentence ordering30 Qs · 25 marks

What you get

Everything for CDS, in one course

  • Chapters in English and Hindi75 chapters on the official syllabus, each ending in a quiz that explains every answer.
  • Mock tests in the real patternTimed and marked the way the exam is, negative marking included, with a section-by-section report.
  • Revision and weak-area analyticsSee which topics cost you marks, and revise them on a spaced schedule.
  • AI mentorPremiumAsk a doubt in English or Hindi, any hour, and get a plain answer.

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Try a real CDS question

A real question from the course. No sign-up needed.

From the chapter: English Grammar — The Rules Tested Every Year

Spot the part that contains an error: The number of students in this school (A) / have increased (B) / considerably (C) / over the last five years (D).

Show the answer and why

Answer: B.

The subject is the number, which is singular, so the verb must be has increased. The plural noun students sits inside the phrase of students and cannot govern the verb. Contrast A number of students have increased their scores, where a number of genuinely means several and takes a plural verb. Remember the pair: the number of … is / A number of … are.

Syllabus

CDS syllabus, chapter by chapter

Open a subject to see its chapters.

🔤 English Language & ComprehensionFree chapter5 chapters
  1. English Grammar — The Rules Tested Every YearFree
  2. Reading Comprehension II: Story, Editorial and Report Passages
  3. Vocabulary — Synonyms, Antonyms, Idioms & One-Word Substitution
  4. Sentence Structure & Transformation — Voice, Narration, Jumbles & Cloze
  5. Reading Comprehension — Method & Practice Sets

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🇬🇧 English: Grammar, Vocabulary & Comprehension3 chapters
  1. Grammar & Usage — Spotting Errors and Sentence Improvement
  2. Vocabulary — Synonyms, Antonyms, Idioms & One-Word Substitution
  3. Comprehension, Cloze Tests & Sentence Ordering

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🌏 General Knowledge: Science, History, Geography & Defence7 chapters
  1. Physics — Matter, Motion, Heat, Sound, Light, Electricity & Simple Machines
  2. Chemistry — Changes, Atomic Structure, Acids, Bases, Salts & Everyday Products
  3. General Science — Cells, Tissues, Human Organs, Balanced Diet & Major Discoveries
  4. Indian Culture, Civilisation & the Freedom Movement
  5. The Indian Constitution & Major World Revolutions
  6. Geography — The Earth, Climate, Rocks, Earthquakes, India & Trade Routes
  7. Current Events, Sports, Personalities & Defence Awareness

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🏛️ Indian Polity13 chapters
  1. Historical Background of the Indian Constitution (1773–1947)
  2. Making of the Indian Constitution
  3. The Preamble & Salient Features of the Constitution
  4. Fundamental Rights (Part III, Articles 12–35)
  5. Directive Principles (DPSP) & Fundamental Duties
  6. The Parliament of India (Union Legislature)
  7. The Union Executive: President, Vice-President & Council of Ministers
  8. The Indian Judiciary: Supreme Court & High Courts
  9. Centre–State Relations & Indian Federalism
  10. Constitutional & Statutory Bodies
  11. Emergency Provisions, Elections & Anti-Defection
  12. State & Local Government: Governor, Legislature, Panchayats, Municipalities & Union Territories
  13. Amending the Constitution: Article 368, Basic Structure, Landmark Amendments & Statutory Bodies

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📜 History15 chapters
  1. Modern India: The Freedom Struggle (1857–1947)
  2. Indus Valley Civilisation & the Vedic Age
  3. Delhi Sultanate & the Mughal Empire
  4. Bhakti & Sufi Movements and Indian Art & Culture
  5. Peasant, Tribal & Religious Reform Movements
  6. Mahajanapadas, the Rise of Magadha, Buddhism & Jainism
  7. The Mauryas and the Post-Mauryan Age
  8. The Guptas and After: Harsha and the Kingdoms of the South
  9. Indian Architecture & Sculpture: From Harappa to the Raj
  10. Indian Painting and the Performing Arts
  11. Religion, Philosophy, Language and Heritage
  12. British Expansion and the Colonial State, 1757–1857
  13. Social and Religious Reform, Education and the Press
  14. The National Movement and Constitutional Development, 1885–1947
  15. India after Independence: Consolidation, Reorganisation and Change, 1947–1991

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🌍 Geography9 chapters
  1. Physical Geography of India
  2. World & Physical Geography Fundamentals
  3. Resources, Industry, Transport & Population
  4. Environment, Ecology & Biodiversity
  5. Ecology & Biodiversity in Depth
  6. Conservation in India: Protected Areas, Laws & Institutions
  7. Pollution, Climate Change & International Environmental Cooperation
  8. Soils, Natural Vegetation & Agriculture of India
  9. Climatology & Oceanography: Atmosphere, Winds, Cyclones and the Oceans

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📈 Economy6 chapters
  1. Basics of the Indian Economy
  2. Budget, Banking & Inflation
  3. External Sector & Economic Institutions
  4. Poverty, Employment & Human Development
  5. Money, Financial Markets & Financial Inclusion
  6. Agriculture, Industry & Infrastructure: Policies, Schemes and Financing

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🔬 Science & Technology5 chapters
  1. Space & Defence Technology
  2. Atomic Structure, Radioactivity & Nuclear Energy
  3. Computers, IT & Emerging Technologies
  4. Biotechnology & Health Technology: Tools, Therapies, Vaccines and Biosafety
  5. Physics, Materials & Energy Technologies: Chips, Light, Quantum, Storage and Clean Power

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🏆 General Awareness1 chapter
  1. Static GK, Art & Culture — The Recall Bank

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➗ Quantitative Aptitude4 chapters
  1. Arithmetic Foundations — Numbers, Percentage, Ratio & Averages
  2. Profit, Interest, Time & Work, and Motion
  3. Algebra & Trigonometry
  4. Geometry, Mensuration & Data Interpretation

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🚆 Statistics1 chapter
  1. Statistics and Basic Probability

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🔢 Mathematics Extras: Number Systems, Logs & Heights2 chapters
  1. Number Systems, Binary Arithmetic and Logarithms
  2. Heights and Distances, and the Properties of Triangles

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🎖️ SSB Interview4 chapters
  1. The SSB in Full — Structure, the Five Days, and Stage I Screening
  2. The Psychological Tests — TAT, WAT, SRT and Self-Description
  3. The GTO Ground — Nine Group and Outdoor Tasks
  4. The Personal Interview, the Fifteen OLQs, the Conference and After

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Price

Start free. Upgrade when you are ready.

  • Basic₹29/monthless than ₹1 a day · every CDS chapter, mocks and PYQs
  • Free₹0first chapter + 1 full mock, no card
  • Premium₹399 oncethen ₹29/month · AI mentor, answer writing, unlimited mocks
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Prices include GST. Cancel anytime. Fees worked out per day →

FAQ

Frequently asked questions

What is CDS?

CDS (सीडीएस) is the exam conducted by Union Public Service Commission; it is also searched for as “cds exam”, “combined defence services” and “सीडीएस परीक्षा”. This page prepares you for it with 75 bilingual chapters and 3 full-length mock papers, in English and Hindi.

What mock tests does the CDS course have?

3 full-length mock papers, one for each paper in its real pattern: English (120 questions, 100 marks, 120 minutes, a third of a question's marks off for a wrong answer); General Knowledge (120 questions, 100 marks, 120 minutes, a third of a question's marks off for a wrong answer); Elementary Mathematics (100 questions, 100 marks, 120 minutes, a third of a question's marks off for a wrong answer). Each is timed and marked the way the real paper is.

How much does CDS preparation cost here?

The first chapter is free. Basic is ₹29/month: every chapter, 4 mock tests and 150 previous-year questions a month, with the question bank, revision and analytics. Premium is ₹399 once (your first month included), then the same ₹29/month: unlimited mocks and PYQs, and the AI mentor, answer-writing evaluation and interview practice. Prices include GST.

Is the material available in Hindi?

Yes — every chapter, every question and every explanation exists in both English and Hindi, written in parallel rather than machine-translated. Switch language once and the whole course follows.

Who conducts the CDS exam, and where are the official notifications?

Union Public Service Commission conducts it. Dates, eligibility and notifications are published only on the official website, https://upsc.gov.in. This course is independent and not affiliated with Union Public Service Commission.

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Official sources

CareerCraft Labs is a private study platform. It is not a government body and is not affiliated with, endorsed by, or authorised by any examination authority. We do not accept applications, conduct examinations, or issue government results.

Notifications, syllabi, exam dates and results are official only on the conducting body's own website. Always verify there before you act on anything you read here.

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