1st April 2023

Confidant Classes

Competitors' very first choice

Home | Edu NEWS | CDS-II: 2020

CDS-II: 2020

CDS 2 exam will be held on November 8, 2020, CDS or Combined Defence Services examination is a national-level entrance test conducted by UPSC twice a year, first in February and the second one in November. It is conducted for the recruitment of candidates for the following defence academies. 

  • Indian Military Academy (IMA)
  • Indian Naval Academy (INA)
  • Air Force Academy (AFA)
  • Officers Training Academy (OTA)

For women/girls who are applying for CDS can only apply for the posts of OTA. The Syllabus of IMA, INA, AFA and OTA is the same.

OTA – 2
OTA – 2000
EXAM DURATION2Hrs. for each section.

Some Guidelines

Refresh yourself with:

  • Famous Books and its Author (recent year),
  • National or Nobel Award Winners (recent year),
  • Theories or Experiments (recent in news or discovered),
  • States or Countries (recent in news).
  • In history try to do questions of all periods and dynasties in a categorised manner .
  • For Physics and Chemistry, NCERT books of Class 8, 9 and 10 and also, read Class 11 and 12 Physics and Chemistry from the handbook of the respective subjects.
  • Categorise Biology in three parts – Humans, Plants and Animals and try to cover basics and do questions on them.
  • In Polity Constitution, Our Preamble, Recent Schemes by Government, Changed Names of Places, Slogans and Taglines of Political Parties or Persons and Recent Historic Decisions or Bills (like CAA) are important.
  • For Maths, practise topics from NCERT books Class 7 to 10 and simultaneously maintain a separate copy for formulae and key points for last week revision.


ENGLISHSpotting 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
Current Affairs
Defence related Award
AlgebraBasic Operations
simple factors
Remainder Theorem
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
Trigonometric 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
GeometryLines 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
Mensuration Areas of squares
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
StatisticsCollection and tabulation of statistical data
Graphical representation frequency polygons
bar charts
pie charts etc
Measures of central tendency

How to do preparation

Go through the syllabus: While studying according to the CDS syllabus, candidates should jot down all the topics they are confident about and those where they lack knowledge. Try to focus on weaker areas and cope up with them as soon as possible to avoid last-minute confusion. 

Solve Previous Year Papers and Mocks: This helps candidates in gaining familiarity with the type of questions asked in the exam, distribution of questions, difficulty level and marking scheme. Besides, it helps to asses the level of preparation for the exam. In doing so, candidates can focus on the weaker areas. 

Clear basics: It is important to clear your basic concepts rather than cramming the formulas. Since simple questions are asked in a tricky format, be thorough with your concepts in order to understand and solve the questions.

Focus on important topics: During preparations, lay emphasis on important topics, carry maximum marks and easier to score in. 

Attempt easier questions first: Candidates should go through all questions and try solving those questions first, which they find easy and require less time to score qualifying marks. Beware of attempting questions that you are not confident of as there is negative marking too.

Preparation tips

English: To enhance the score in English paper, one must go through the rules of grammar and prepare idioms & phrases thoroughly. 

General Knowledge: Identify the high weightage topics after analysing the previous years’ question papers.  Revise important facts from those topics and current affairs of last 4-5 months properly.

Elementary Mathematics: Revise important formulas and their application methods for Algebra, Arithmetic, Trigonometry, Geometry, Mensuration and Statistics. Do not start with new topics rather revise those you have studied. 

Recommended Books

High School English Grammar & Composition Edition by Wren and Martin

Word Power Made Easy by Norman Lewis

  • Magazines such as Pratiyogita Darpan, Pratiyogita Kiran, Competition Success Review (CSR), and Yojana
  • Newspapers
  • NCERT Class 6 TO 12 books all streams
[smartslider3 slider=”2″]

About Post Author


Enjoy this? Please spread the word :)