Best Books for CDS 2021 Exam Preparation [Subject Wise]

Here is the solution to score the best and kick-start your CDS 2021 Exam preparation. Check out the section-wise important books and topics for the CDS exam 2021.  The list includes English, Mathematics, and General Knowledge books and important topics.   

Best CDS Books 2021

CDS 2021 Exam Pattern Highlights

Mode of Exam Offline only
Number of Questions asked 300 MCQ Type
Number of questions in OTA 200 MCQ Type
Maximum Marks 300 ( Indian Military, Navy, and Air Force) and 200 (OTA)
Duration of Exam 2 hours (120 minutes) for each paper
Medium Hindi or English
Negative marking One-third mark deducted for every incorrect response

English Books for CDS 2021

This section is designed to test the grammar and vocabulary understanding of the candidates. Here are the books which the students can refer to for the preparation of the CDS English section exam.

Books Author
Wren & Martin’s High School English Grammar & Composition Wren and Martin’s
Objective General English S. P. Bakshi
Word Power Made Easy Norman Lewis

General Knowledge Books for CDS 2021

For the preparation of the GK Section, one should be timely updated with the occurrence of events. This section must not be up to the mark in terms of books; this should be studied from online sources. Here refer to the below-mentioned books to catch important and detailed study of events.

Books Author
Geography & History NCERT (Std 6th-12th)
Pathfinder for CDS Arihant Experts
General Knowledge (Latest Edition) Manohar Pandey (Arihant Publication)
Manorama Yearbook Malayala Manorama publishers
Daily newspapers The Hindu, Indian Express, etc.
Competition Success Review (Magazines) Competition Success Review Author
Pratiyogita Darpan (Magazine) Pratiyogita Darpan Editorial Team

Mathematics Books for CDS 2021

This section needs a proper understanding of the formulae/ideas and topic-wise clearance of concepts. The books mentioned below will help you achieve that.

Books Author
Quantitative Aptitude for Competitive Examinations R. S. Aggarwal
Pathfinder for CDS Arihant Experts
Mathematics for CDS Examination R. S. Aggarwal

CDS Marking Scheme 2021

The following table explains the detailed marking scheme of the exam.

CDS Paper English GK Mathematics
Maximum Marks 100 100 100
Marks for Correct answer +1 marks for each correct option +1 marks for each correct option +1 marks for each correct option
Negative marking -0.33 marks for each wrong answer -0.33 marks for each wrong answer -0.33 marks for each wrong answer

The following table shows the Marking scheme for the 2021 OTA (Officers’ Training Academy):

CDS Exam English GK
Maximum Marks 100 100
Marks for Correct answer +1 marks for each correct option +1 marks for each correct option
Negative marking -0.33 marks for each wrong answer -0.33 marks for each wrong answer
  1. English

The English question paper will be designed to test the candidates’ understanding of the English language. As per the previous year’s analysis, the following are the important topics asked in the English paper.

Topic Number of Questions Level of Difficulty
Sentence Improvement 20 Easy
Reading Comprehension 23 (5 passages) Easy to Moderate
Synonyms 8 Moderate
Antonyms 7 Easy
One Word Substitution 5 Moderate
Para-Jumble 10 Easy to Moderate
Sentence-Jumble 7 Moderate
Spot the Error 20 Easy
Cloze Test 20 Easy
  1. General Knowledge

As per the previous year analysis following are the important topics for the GK paper:

Topic Number of Questions Level of Difficulty
History 19 Difficult
Science 27 Easy (Concept-based questions)
Geography 22 Moderate (Analytical based questions)
Ecology 06 Moderate (Fact-based questions)
Polity 20 Easy to Moderate
Economy/Trade 11 Moderate (Fact-based questions)
Miscellaneous /Armed Forces 15 Moderate (Fact-based questions)
  1. Elementary Mathematics 

In the following table, the previous year’s paper analysis of mathematics paper is mentioned.

Topic Number of Questions Level of Difficulty
Mensuration 14 Easy
Algebra 7 Easy to Moderate
Mean-Median-Mode (Frequency Distribution Table) 4 Easy
Time speed and Distance 6 Easy
Number System 20 Easy to Moderate
Simple interest/Compound interest 5 Easy
Percentage 2 Easy
Profit/Loss 1 Easy
Mixture 1 Easy
Time and Work 3 Easy
Trigonometry 14 Moderate to Difficult
Set Theory 1 Easy
Clock 2 Easy
Geometry 20 Easy to Moderate

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