CDS Syllabus and Exam Pattern 2023 are discussed in the article. The Union Public Service Commission (UPSC) conducts the "Combined Defence Services" (CDS) Examination twice a year for recruiting candidates for the Indian Military Academy, Officers Training Academy, Indian Naval Academy and Indian Air Force Academy. The CDS 2 Notification 2023 has been released on 17th May 2023 and CDS 2 Exam is to be held on 03rd September 2023.  A total of 349 vacancies have been announced for various posts. Only unmarried graduates are eligible to sit for the exam. Successful candidates are admitted into the respective Academies after an interview conducted by the Services Selection Board ( SSB ). To clear the examination, first, you need the complete information of the pattern, syllabus and previous year exam analysis so that it would become easy for you to analyse the examination and prepare a strategy further.

CDS Syllabus 2023- Overview

CDS Exam will be conducted in offline mode and there will be Multiple Choice Questions asked in the examination. Check an overview glimpse of CDS Exam from the below table. 

CDS Syllabus 2023- Overview
Exam Conducting BodyUnion Public Service Commission (UPSC)
Exam NameCombined Defence Services (CDS)
Mode of examOffline
Number of sectionsIndian Military Academy (IMA), Indian Naval Academy (INA) and Air Force Academy (AFA) – Three 
Officers’ Training Academy (OTA) – Two
Total marks of the testIMA, INA and AFA – 300 
OTA - 200
Nature of questionsObjective type
CDS 2 2023 Exam Date03rd September 2023
Language of question paperHindi and English
Duration of the test2 hours for each section of test

CDS 2 Admit Card 2023 Out- Click to Download

CDS Exam Pattern for IMA, INA, AFA

SubjectDurationMaximum marks
English2 hours100
General Knowledge2 hours100
Elementary Mathematics2 hours100

CDS Exam Pattern for OTA

SubjectDurationMaximum marks
English2 hours100
General Knowledge2 hours100

CDS Previous Year Question Paper PDFs

CDS Syllabus 2023 Marking Scheme

Negative marking is applicable for every wrong-marked answer. In CDS 2023 paper, each question carries 4 options and out of which only 1 option is correct. For each incorrect answer, 1/3 of the marks will be deducted. More than one option marked is treated as incorrect. However, if a question is left unanswered there will be no negative marking.

CDS Syllabus 2023- Subject-Wise Syllabus

Candidates can check the UPSC CDS Syllabus in the table given below.

  • * Spotting Errors Questions
  • * Sentence Arrangement Questions
  • * Synonyms & Antonyms
  • * Selecting Words
  • * Ordering of Sentence
  • * Comprehension Questions
  • * Ordering of words in a sentence
  • * Fill in the blanks questions
  • * Idioms and Phrases
General Awareness (GK)
  • * Economics
  • * Physics
  • * Current Affairs
  • * Politics
  • * Chemistry
  • * Sociology
  • * History
  • * Defence related Award
  • * Geography
  • * Environment
  • * Sport
  • * Biology
  • * Cultural
  • * Book
  • * Statement
  • * true/false
Elementary MathematicsAlgebra
  • * Basic Operations
  • * simple factors
  • * Remainder Theorem
  • * H.C.F.
  • * L.C.M.
  • * Theory of polynomials
  • * solutions of quadratic equations
  • * relation between its roots and coefficients (Only real roots to be considered)
  • * Simultaneous linear equations in two unknowns—analytical and graphical solutions
  • * Simultaneous linear inequations in two variables and their solutions
  • * Practical problems leading to two simultaneous linear equations or inequations in two variables or quadratic equations in one variable & their solutions
  • * Set language and set notation
  • * Rational expressions and conditional identities
  • * Laws of indices
  • * Number System: Natural numbers, Integers, Rational and Real numbers.
  • * Fundamental operations: addition, substraction, multiplication, division, Square roots, Decimal fractions
  • * Unitary method
  • * time and distance
  • * time and work
  • * percentages
  • * applications to simple and compound interest
  • * profit and loss
  • * ratio and proportion
  • * variation
  • * Elementary Number Theory: Division algorithm
  • * Prime and composite numbers
  • * Tests of divisibility by 2, 3, 4, 5, 9 and 11
  • * Multiples and factors. Factorisation Theorem
  • * H.C.F. and L.C.M.
  • * Euclidean algorithm
  • * Logarithms to base 10
  • * laws of logarithms
  • * use of logarithmic tables
  • * Sine ×, cosine ×, Tangent × when 0° < × < 90°
  • * Values of sin ×, cos × and tan ×, for ×= 0°, 30°, 45°, 60° and 90°
  • * Simple trigonometric identities
  • * Use of trigonometric tables
  • * Simple cases of heights and distances
  • * Lines and angles
  • * Plane and plane figures
  • * Theorems on Properties of angles at a point
  • * Parallel lines
  • * Sides and angles of a triangle
  • * Congruency of triangles
  • * Similar triangles
  • * Concurrence of medians and altitudes
  • * Properties of angles
  • * sides and diagonals of a Parallelogram
  • * rectangle and square
  • * Circles and its properties including tangents and normals
  • * Loci
  • * Areas of squares
  • * rectangles
  • * parallelograms
  • * triangle and circle
  • * Areas of figures which can be split up into these figures (Field Book)
  • * Surface area and volume of cuboids
  • * lateral surface and volume of right circular cones and cylinders
  • * surface area and volume of spheres
  • * Collection and tabulation of statistical data
  • * Graphical representation frequency polygons
  • * histograms
  • * bar charts
  • * pie charts etc
  • * Measures of central tendency

CDS Important Instructions

  1. Write only in Black ballpoint pen, your Centre and subject followed by the CDS 2023 test booklet series (in bracket), subject code and the exam roll number at the appropriate space provided on the answer sheet at the top.
  2. Encode your CDS 2023 booklet series (A, B, C, or D as the case may be), subject code and roll number in the circles provided for the purpose in the answer sheet.
  3. In case the CDS booklet series is not printed on the test booklet or answer sheet is un-numbered then candidates should report immediately to the invigilator and get the test booklet/answer sheet replaced.
  4. Candidates should note that any omission/mistakes/discrepancy in encoding/filling of details in the CDS 2023 OMR answer sheet, especially with regard to the Roll Number and Test Booklet Series Code, will render the answer sheet liable for rejection.
  5. Immediately after the commencement of the CDS 2023 please check that the test booklet supplied to you does not have any unprinted or torn or missing pages or items etc., if so, get it replaced by a complete test booklet of the same series and subject.
  6. Do not write your name or anything other than the specific items of information asked for, on the CDS answer sheet/test booklet/sheet for rough work.
  7. Do not fold or damage or put any extraneous marking over the CDS Answer Sheet. Do not write anything on the reverse of the answer sheet.

NDA Syllabus 2023 & Exam Pattern

AFCAT Syllabus 2023 & Exam Pattern

CDS Syllabus 2023: FAQs

Ans. No. The IMA have 3 subjects while OTA have only different subjects.

Ans. UPSC Conduct CDS two times in a year.

Ans. There is no such restrictions on the number of attempts of CDS.

Ans. No.

Ans. The level of Mathematics is till 10th standard only.

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