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COMBINED DEFENCE SERCICES (CDS) EXAMINATION

CDSE stands for combined defence services examination. Every year UPSC i.e. union public service commission conducts CDS examination twice a year for the recruitment of Commissioned officers in the Indian armed forces.

As the name suggests it is a combined defence Examination for joining Indian Army, Indian Navy & Indian Airforce as an officer by the courses carried out by 1. Indian Military Academy (IMA) 2. Indian Air Force Academy (AFA), 3. Indian naval Academy (INA) 4. officers training Academy (OTA). Unlike NDA both male and Female graduates are eligible to sit for the examination.

Examination details

Vacancies 1. Indian Military Academy - 100
2. Indian Naval Academy - 45
3. Air Force Academy - 32
4. Officers Training Academy (Men) - 175
5. Officers Training Academy (Women) - 12
Availability of Forms July & November (may be changed)
Exam Schedule February & November (may be changed)
Age Limit, Gender & Marital Status 20 to 24, Unmarried Male and Female
Educational IMA & OTA (Men & Women)-Graduation passed or appearing.
Qualification Indian Naval Academy (INA) - B.E. or B.Tech passed or appearing Air Force Academy (AFA) - Graduation passed or appearing in a any stream.
Selection Procedure Written Exam conducted by UPSC. SSB Interview conducted by Army/Air Force/Navy.

Paper Subject Questions
Medical Examination
Training IMA/INA/AFA 18 Months, OTA-11 Months.

Exam Pattern for IMA / AFA / NA

Paper Subject Questions Marks Time
Paper-I Maths 100 100 2 H
Paper-II English 120 100 2 H
Paper-III GK 120 100 2 H

for OTA

Paper Subject Questions Marks Time
Paper-I English 120 100 2 H
Paper-II GK 120 100 2 H

CDS Selection Procedure (Syllabus)

Mode of exam Offline
Number of sections Indian Military Academy (IMA), Indian Naval Academy (INA) and Air Force Academy (AFA) - Officers’ Training Academy (OTA)
Total marks of the test IMA, INA and AFA - 300 OTA - 200
Nature of questions Objective type
Language of question paper Hindi and English
Duration of the test 2 hours for each section of test

CDS Exam Syllabus

. English .
Sections Topics
English • 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

The topic-wise questions distribution in English

Synonym 9-10 questions
Antonym 8-10 questions
Spotting the errors 20-25 questions
Sentence improvement 20-24 questions
One word Substitution 5-6 questions (may vary)
Selecting correct words 5-6 questions (rarely asked)
Ordering of sentences 15-20 questions
Ordering of words in sentences 15-20 questions
Fill in the blanks (cloze comprehension) 10-15 questions
Comprehension (passage) 20-25 questions
Direct Indirect speech 5 questions (asked only once till now)
Passive Active Voice 5 questions (asked only once till now)
Synonym 9-10 questions
Antonym 8-10 questions
Spotting the errors 20-25 questions

. General Awareness .
Topic Topic-wise Syllabus
General Awareness (GK) • Economics
• Physics
• Current Affairs
• Politics
• Chemistry
• Sociology
• History
• Defence related Award
• Geography
• Environment
• Sport
• Biology
• Cultural
• Book
• Statement
• true/false

The topic-wise questions distribution in General Awareness

Indian Polity 23-26 questions
Geography 16-17 questions (Mapping & location oriented questions)
Economics 13-14 questions
History 14 questions
Physics 10-11 questions
Chemistry 11-12 questions
Biology 10-11 questions
Current Affairs 16-17 questions (some polity and geography oriented current affairs)
Defence related 3-4 questions only
Sports, award, important days 2-3 questions only
Environment related 1-2 questions only

. Mathematics .
Topic Topic-wise Syllabus
Elementary Mathematics • Algebra
• Arithmetic
• Trigonometry
• Geometry
• Menstruation
• Statistics

The topic-wise questions distribution in Mathematics.

Number System 6 Questions Simple Trigonometry 9 Questions
Average 2 Questions Height and Distances 2-3 Questions
Time, speed and Distance 5 Questions Angle lines and triangles 9 Questions
Time and Work 5 Questions Circle and its properties 7 Questions
Profit and Loss 2 Questions Parallelogram, square and rectangle 2 Questions
Simple Interest 3 Questions Area of square/Rectangle/triangle 1-2 Question
Percentage and Discount 4 Questions Volume of cube and cuboid 3 Questions
LCM and HCF 1-2 Questions Volume of Cylinder 2-3 Questions
Ratio and Proportion 5 Questions Volume of cone 2 Questions
Logarithm 2 Questions Volume of Sphere 1-2 Questions
Polynomial/ Linear Equation 7 Questions Surface Area Questions 2-3 Questions
Quadratic Equation 7 Questions Statistics 5 Questions
Sets and series 1 Question

CDS Written Programme

3 years Guaranteed Selections Progrmme

Duration Course Name / Code Form Charge Course Fees Total
3-Year Jaguar / IDA001 Rs.1000/- Rs. 1,35,000/- 1,36,000/-

CDS Target Batch

Duration Course Name / Code Form Charge Course Fees Total
1-Year Rudra / IDA02 Rs.1000/- Rs. 48000/-

CDS Two Years Foundation Batch

Duration Course Name / Code Form Charge Course Fees Total
2-Years Officer / IDA123 Rs.1000/- Rs. 48,500/- Rs. 98,000/-