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What are the important topics to cover under the CDS Syllabus?

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The Union Public Service Commission (UPSC) announced the syllabus and the exam pattern of the Combined Defence Service Examination (CDS). Aspirants preparing for this exam must go through the important topics covered under the CDS syllabus and start their preparation strategically. The CDS syllabus covers the topic and subtopic and is precisely based on the paper pattern.

As per the CDS syllabus, General Knowledge and English question papers have 120 questions each. The GK section is very vast in the CDS exam. Questions from Geography, History, Polity, Science, and Current affairs and Economics are asked in this section. There is also a negative mark for each wrong answer.

List of Important Topics for CDS Exam- Subject Wise

The subject wise important topics for the CDS exam have been mentioned below.

Important topics from General Knowledge under the CDS syllabus

Here are the important topics for CDS exam preparation from where the questions will be asked in the exam. You can also visit BYJU’S Exam Prep that provides a vast number of articles on static GK as well as current affairs.

  • Geography
  • History
  • Sociology
  • Economics
  • Environment
  • Politics
  • Science (Physics, Chemistry, Biology)
  • Books & Authors
  • Awards
  • Sports
  • Culture and Traditions
  • Current Affairs

Important topics from English for CDS syllabus

English questions are asked from the following topics:

  • Sentence improvement
  • Antonyms
  • Synonyms
  • Comprehension
  • Ordering of sentences
  • Para Jumbles
  • One word substitution
  • Ordering of words in a sentence
  • Spotting Errors

Important topics from Mathematics  for CDS syllabus

The following are the important topics for CDS exam preparation.

HCF & LCM of numbersNumber SystemSimple interestHCF & LCM of polynomials
Compound interestDecimal fractionLinear Equations in one and two VariablesQuadratic Equations and Inequations
Surface area and volume of solidsRatio and proportionLines and anglesAverage
Square roots and cube rootsMeasurement of angles and trigonometric measurementQuadrilateral and polygonProfit and loss
percentageLogarithmHeight and distance


Time and Work
Ratio ExpressionsStatistical Data AnalysisBasic operations and factorization

Important topics from Algebra under the CDS syllabus

Basic Operations simple factorsH.C.F. & L.C.M.Set language and set notationTheory of polynomials
Remainder TheoremLaws of indicesSolutions of quadratic equationsSimultaneous linear inequations in two variables and their solutions
Rational expressions and conditional identitiesRelation between roots and coefficients (Only real roots to be considered)Practical problems leading to two simultaneous linear equations/inequations in two variables/quadratic equations in one variable and their solutionsSimultaneous linear inequations in two variables and their solutions

Important topics from Statistics under the CDS syllabus

Graphical representationCollection and tabulation of statistical dataHistogramsPie charts
Frequency polygons, etcBar chartsMeasures of central tendency

 Important topics from Mensuration under the CDS syllabus

Surface area and volume of cuboidsAreas of squares, parallelograms, rectangles, triangle, and circleAreas of figures which can be split up into these figures (Field Book)Lateral surface and volume of right circular cones and cylinders

Important topics from Geometry under the CDS syllabus

Plane and plane figuresLines and anglesSides and angles of a triangleThe concurrence of medians and altitudes
Rectangle and squareTheorems on Properties of angles at a point Parallel lineCongruence of trianglesProperties of angles

Aspirants must put extra effort into their preparation for this section. In BYJU’S Exam Prep online programs, aspirants will get all the important MCQs from the current affairs section. In this online program, aspirants will get regular updates of news from the past few months, and it will help the aspirants to score high marks in the CDS exam. Besides that, aspirants can also practice online mock tests in this comprehensive exam preparation platform.

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