CDS I 2023

The Combined Defence Services Examination is conducted by the Union Public Service Commission for recruitment of Commissioned Officers in the Indian Military Academy, Officers Training Academy, Indian Naval Academy and Indian Air Force Academy.

Important Dates
Registration Begins :
December 21, 2022
Last Date for Application :
January 12, 2023
Admit Card Release :
March 24, 2023
Exam Date :
April 16, 2023
Result :
May 4, 2023
Exam Details
Website :
Mode :
Exam Fee :
INR 200
Reservation :
No CDS and AFCAT exams are freed from Reservation System.
Exam Frequency :
Twice a Year
Duration :
2 hours (120 minutes) for each paper
Conducted By :
Union Public Service Commission (UPSC)
Programmes :
For the recruitment of candidates into Indian Naval Academy, Air Force Academy, Indian Military Academy, Officers’ Training Academy (SSC Men/Women)
Languages :
Hindi, English
Min Age : 20 Years
Max Age : 24 Years
Number of Attempts : No limit to the number of attempts.
Qualification Criteria : Any Graduation
Aggregate Percentage / Marks Required : There is no minimum qualifying percentage as the CDS eligibility condition.
Marking Scheme, Pattern & Cut-Offs
Exam Mode :
Multiple-Choice Questions (MCQs)
Stages :
Negative Marking :
Number of Ques. :
300 ( Indian Military, Navy and Air Force) and 200 (OTA)
Maximum Marks :
300 ( Indian Military, Navy and Air Force) and 200 (OTA)
Cut-Offs :
CDS I 2023 expected cut-off AFA 146 IMA 121 INA 112 OTA (Female) 84 OTA (Male) 84


          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 Mathematics
* Algebra
* 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
* Arithematic
* Number System: Natural numbers, Integers, Rational and Real numbers.
* Fundamental operations: addition, substraction, multiplication, division, Square roots, Decimal fractions
* Unitary method
* Time and Ddistance
* 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
* Trigonometry
* 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
* Geometry
* 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
* Mensuration
* 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
* Statistics
* Collection and tabulation of Statistical Data
* Graphical Representation Frequency Polygons
* Histograms
* Bar Charts
* Pie Charts etc.
* Measures of Central Tendency

Reservation Criteria

CDS and AFCAT exams are freed from Reservation System. Also They Maintain a higher level of merit if u got qualified , Recommend by SSB Boards , clear your Medical examination then they will make an over All Merit list by which they select the candidate as per their standard.

Exam Information & Centers

CDS Exam Centers in 2023
The cities where the written test will be held in 2023 are listed as CDS exam centres. The examination will be held in over 70 places throughout the country. Candidates can specify one exam city option when filling out the application form. Exam centres will be assigned on a first-come, first-served basis. The following is a list of CDS exam centres.

Agartala Ghaziabad Panaji – Goa
Agra Gorakhpur Patna
Ajmer Gurgaon Port Blair
Ahmedabad Prayagraj – Allahabad Gwalior
Aizawl Hyderabad Puducherry
Aligarh Imphal Pune
Almora – Uttarakhand Indore Raipur
Anantapur – Andhra Pradesh Itanagar Rajkot
Aurangabad Jabalpur Ranchi
Bengaluru Jaipur Sambalpur
Bareilly Jammu Shillong
Bhopal Jodhpur Shimla
Bilaspur Jorhat Siliguri
Chandigarh Kochi Srinagar
Chennai Kohima Srinagar – Uttarakhand
Coimbatore Kolkata Thane
Cuttack Kozhikode – Calicut Thiruvananthapuram
Dehradun Leh Tiruchirapalli
Delhi Lucknow Tirupati
Dharwad Ludhiana Udaipur
Dispur Madurai Varanasi
Faridabad Mumbai Vellore
Gangtok Mysore Vijayawada
Gaya Nagpur Visakhapatnam
Gautam Buddh Nagar Navi Mumbai

Frequently Asked Questions

FAQs for UPSC CDS Exam 

Who conducts CDS exam and what is its purpose?

Combined Defence Services exam commonly known as CDSE is conducted by UPSC (Union Public Service Commission). Its purpose is to recruit worthy candidates into Officers Training Academy, Indian Military Academy, Indian Air Force Academy and Indian Naval Academy. This exam is conducted twice every year.

What are the eligibility requirements for CDS exam?

The candidate should be a citizen of India. The age and educational criteria differ according to the academies:

Officers Training Academy – 19 to 25 years, should be a Graduate from a recognised university.
Indian Military Academy - 19 to 24 years, should be a Graduate from a recognised university.
Indian Ait Force Academy – 19 to 23 years, should have graduated in engineering or B.Sc with Physics and Mathematics.
Indian Naval Academy – 19 to 22 years, should have graduated in engineering or B.Sc with Physics and Mathematics.
The candidates need to be physically and mentally fit according to guidelines of the academies.

How can one register for the CDS exam?

The mode of registration is online and the forms are available on the official website of UPSC.

Can women candidates apply for CDS?

Yes, women candidates can apply for CDS examination but only for the posts of Officers Training Academy.

Is there any registration fee? If yes, then what is the mode of payment?

Yes, and it can be paid through online or offline mode.

Payment by credit or debit card
By net banking facility of SBI
Cash payment can be done in any SBI branch

Are there any guidelines to refill or make changes in the registration form, in case of any mistake?

Yes, a candidate can fill any number of registration forms in case of some mistake. While filling the new form candidate is required to pay the registration fee through a new registration ID.

What is the procedure for exam centre allotment, can it be changed if already allotted by the authorities?

The candidates are asked to select three preferable cities out 41 cities given in the registration form. And are thus allotted the centre on the first come first serve basis. UPSC does not really entertain any requests for change in the exam centre until the situation is not very serious.

Is there any fixed number of attempts for appearing in CDS exam?

There are no fixed number of attempts for CDS exam, as long as the candidate fulfils the age criteria he/she can apply for the exam.

What is the exam pattern of CDS exam?

The paper mode is offline and questions are asked in MCQ (Multiple choice questions) format. Paper is available both in English and Hindi language. There are three section which need to be answered according to the candidates preference of posts:

General knowledge
Elementary Mathematics
Each of these section carries 100 marks and is allotted two hours respectively. Candidates wanting to join IMA, INA and AFA need to attempt all the three sections while Candidates wishing to join OTA need to attempt only English and GK sections.

Is there any penalty for wrong answers?

Yes, there is a provision of negative marking in case of wrong answers.

What does CDS exam include in it’s syllabus?

The syllabus for all three sections is as mentioned below:

English – Antonyms, Synonyms, Spotting errors, Comprehension, Sentence Improvement, Word Substitution and Ordering of words in a sentence.
General knowledge – Economics, Politics, History, Geography, Physics, Chemistry, Biology, Current Awareness, Defence related, Environment, Sports and Sociology.
Mathematics - Number System, HCF and LCM, Simple interest, Decimal fraction, Square roots and cube roots, Time and distance, percentage, logarithm, Linear Equations in one and two Variables, Quadratic Equations and In equations, etc.

What happens after qualifying CDS exam?

After the declaration of short listed candidates they are called for SSB (Service Selection Board) for personality and intelligence test. Based on the results of the further tests candidates will be placed according to their scores.