UPSC CDS Syllabus 2021 (English, GK, Maths)- Check Here

UPSC CDS Syllabus 2021– UPSC releases the syllabus of UPSC CDS 2021 for English, GK, Mathematics for better exam preparation. UPSC CDS 2021 syllabus comprises of important subjects and topics of CDS GK syllabus and Elemetary mathematics that aspirants need to prepare for Combined Defence Services 2021. Candidates must have the precise and complete details of exam pattern and UPSC CDS 2021 syllabus in order to crack the exam. Union Public Service Commission (UPSC) will conduct CDS 1 2021 on February 7, 2021. UPSC CDS 2 2021 is scheduled to be held on November 11, 2021. Here, we have mentioned the complete UPSC CDS syllabus 2021 for better CDS 2021 preparation.

UPSC CDS Syllabus 2021 for English

Candidates’ understanding of English and workmanlike use of words will be tested in this section. Below are the topics of CDS English syllabus 2021

  • Vocabulary
  • Reading Comprehension
  • Tenses
  • Ordering of sentences
  • Selecting Words
  • Antonyms
  • Word substitution
  • Spotting Errors

Best Books to Prepare for CDS 2021 English

To prepare the above CDS English syllabus 2021, below are the best books to prefer-

  1. Objective General English by Arihant
  2. Word Power Made Easy: Norman Lewis

UPSC CDS Syllabus 2021 for General Knowledge

  • UPSC CDS GK syllabus 2021 contains topics from the current affairs related to History of India, Geography, Politics, Authors,  Indian Economy, Sports, Awards & Honors Sports, Finance, Agriculture, etc.
  • Candidates can prepare for this section by reading daily newspaper or watch news.
  • The best books to cover the UPSC CDS GK syllabus sections is Lucent’s General Knowledge and Competition in Focus

UPSC CDS Syllabus 2021 for Elementary Mathematics

CDS Maths syllabus 2021 contains different chapters and sub topics. Below is the topics of UPSC CDS exam syllabus 2021 for Elementary Mathematics section 

UPSC CDS Arithmetic syllabus

  • Number System-Natural numbers
  • Fundamental Operations addition
  • Subtraction
  • Decimal
  • Fractions
  • Multiplication
  • Division
  • Time and distance
  • Square roots
  • Unitary method
  • Time and work
  • Percentages
  • Applications to simple and compound interest
  • Profit and loss
  • Ratio and proportion
  • Variation

UPSC CDS Elementary Number Theory Syllabus

  • Division algorithm
  • Multiples and factors
  • Prime and composite numbers
  • Tests of divisibility by 2, 3,4,5,9 and 11
  • Euclidean algorithm
  • Factorisation Theorem
  • H.C.F. and L.C.M.
  • Logarithms to base 10
  • Laws of logarithms
  • Use of logarithmic tables

UPSC CDS Algebra Syllabus

  • Basic Operations
  • H.C.F., L.C.M.
  • Theory of polynomials
  • Simple factors
  • Remainder Theorem
  • Solutions of Quadratic equations relation between its roots and coefficients
  • Simultaneous linear in equations in two variables and their solutions
  • Simultaneous linear equations in two unknowns-analytical and graphical solutions
  • Practical problems leading to two simultaneous linear equations or in equations in two Variables or quadratic equations in one variable & their solutions
  • Laws of indices
  • Set language and set notation
  • Rational expressions and conditional identities

UPSC CDS Trigonometry Syllabus

  • Sine x, cosine x, Tangent x when 0 <x < 90 Values of sin x, cos x and tan x, for x = 0, 30, 45, 60 and 90
  • Simple cases of heights and distances.
  • Use of trigonometric tables.
  • Simple trigonometric identities.

UPSC CDS Geometry Syllabus

  • Lines and Angles
  • Plane and plane figures
  • Theorems on Properties of angles at a Point
  • Sides and angles of a triangle
  • Congruency of triangles
  • Parallel lines
  • Properties of angles, sides and diagonals of a parallelogram, rectangle and square
  • Similar triangles
  • Concurrence of medians and altitudes
  • Circles and its properties including tangents and normal,
  • Loci.

UPSC CDS Mensuration Syllabus

  • Areas of squares
  • Rectangles
  • Areas of figures which Can be split up into these figures (Field Book)
  • Parallelograms
  • Triangle and circle
  • Surface area and Volume of spheres
  • Surface area and volume of cuboids
  • Lateral surface and volume of right circular cones and cylinders


  • Graphical representation
  • Collection and tabulation of statistical data
  • Frequency Polygons
  • Measures of central tendency
  • Histograms, bar charts, pie charts etc.

CDS Exam Pattern 2021

Along with the CDS 2021 syllabus, aspirants should have the complete details of examination pattern. Refer the below table for more details

CDS Exam Pattern for IMA, INA, AFA

Subject Duration Maximum Marks
English  2 hrs 100
General Knowledge 2 hrs 100
Elementary Mathematics 2 hrs 100

CDS Exam  Pattern for OTA

Subject Duration Maximum Marks
English 2 hrs 100
General Knowledge 2 hrs 100

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