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Defence
CDS Preparation
Combined Defence Services
For officer-level entry in armed forces.
Practise 44+ topics across 3 subjects, attempt full-length mock tests, and revise with previous year questions — all mapped to the CDS syllabus.
Subjects & Topics
English
- Reading Comprehension (Passages, Inference, Main idea)
- Grammar (Parts of Speech, Tenses, Articles, Prepositions, Conjunctions)
- Vocabulary (Synonyms, Antonyms, One-word Substitution)
- Sentence Correction & Improvement
- Error Spotting
- Ordering of Sentences & Para Jumbles
- Idioms and Phrases
- Fill in the Blanks
- Active & Passive Voice
- Direct & Indirect Speech
- Spotting Errors
- Cloze Test
General Knowledge
- Indian History (Ancient, Medieval, Modern, Freedom Struggle, Post-Independence)
- Geography (Indian & World - Physical, Economic, Climate, Resources)
- Indian Polity & Constitution (Preamble, Fundamental Rights & Duties, Parliament, Judiciary, President, PM)
- Indian Economy (Planning, Budget, Banking, Currency, Agriculture, Industry, Trade)
- General Science (Physics - Motion, Force, Energy, Light, Sound; Chemistry - Elements, Compounds, Reactions; Biology - Human body, Plants, Animals)
- Defence & Security (Indian Armed Forces, Defence organizations, Wars, Military operations)
- Current Affairs (National & International events, last 6-12 months)
- Sports (Major tournaments, Olympics, Asian Games, Commonwealth Games, Awards)
- Awards & Honors (Padma Awards, Bharat Ratna, Nobel Prize, Booker Prize)
- Books & Authors
- Famous Personalities
- Art & Culture
- +3 more
Elementary Mathematics
- Number Systems (Natural, Whole, Integers, Rational, Real numbers)
- HCF and LCM (Finding HCF & LCM, Word problems)
- Fractions, Decimals and Percentages
- Percentage (Applications, Percentage change)
- Ratio and Proportion (Direct, Inverse, Continued proportion)
- Average (Simple average, Weighted average)
- Profit, Loss and Discount
- Simple Interest and Compound Interest
- Time and Work
- Time, Speed and Distance
- Algebra (Linear Equations, Simultaneous equations, Factorization, Polynomials)
- Geometry (Lines, Angles, Triangles, Quadrilaterals, Circles, Congruence, Similarity)
- +5 more
Frequently asked questions about CDS
- How can I prepare for CDS?
- Practise topic-wise questions across 3 subjects, attempt full-length mock tests and revise using previous year questions. Scoreyo offers all of these mapped to the CDS syllabus.
- Which subjects are covered in CDS?
- CDS covers English, General Knowledge, Elementary Mathematics.
- Are previous year questions available for CDS?
- Yes. Scoreyo provides previous year questions and mock tests for CDS to help you practise the real exam pattern.
Start your CDS preparation
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