CDS

Why Choose CDS

The Combined Defence Services (CDS) examination is a prestigious national-level competitive entrance test conducted twice a year by the Union Public Service Commission (UPSC) for graduates aiming to serve as commissioned officers in the Indian Armed Forces. It serves as the primary gateway for entry into the Indian Military Academy (IMA), Officers Training Academy (OTA), Indian Naval Academy (INA), and the Indian Air Force Academy (AFA). Beyond a mere job, CDS offers a path to a life of extraordinary purpose, leadership, and national service. The selection process is rigorous, involving a comprehensive written examination followed by an intensive personality and intelligence assessment by the Services Selection Board (SSB). Candidates are tested on their proficiency in English, General Knowledge, and Elementary Mathematics, alongside their psychological suitability for command. Successfully clearing CDS is the first step toward a career defined by adventure, disciplined living, and the immense honor of wearing the uniform. At Officers Academy, we simplify this complex journey by providing structured mentorship that transforms your academic potential into officer-like qualities. Choosing CDS means choosing a legacy of bravery and excellence, ensuring a future where you lead with integrity while protecting the sovereignty of the nation.

Why Our Coaching Institute for CDS

Look, cracking the CDS isn't just about rot-learning a bunch of textbooks; it's about changing how you think. Most places just dump notes on you, but at Officers Academy Dehradun, we do things differently. We’ve built a reputation for providing the best CDS coaching in Dehradun, India by treating every aspirant like a future officer from day one. You aren't just here to pass a written exam—you're here to prove you belong in the academy. Our mentors don't just lecture; they share the real grit of the defense lifestyle, helping you build that mental toughness needed for the SSB long before you even reach the board. The competition across India is massive, and honestly, a standard "one-size-fits-all" approach won't cut it. We focus on the gaps in your game, whether it’s struggling with speed in Math or losing confidence in General Studies. Our track record of 250+ selections didn't happen by accident; it happened because we push our students harder than the exam ever will. We provide the right environment, the right strategy, and a zero-nonsense atmosphere. If you're ready to stop making excuses and start working toward those stars on your shoulders, this is where you belong. Let's get to work. In India, the competition for military commissions is intense, necessitating a strategy that is both comprehensive and personalized. At our academy, we utilize a unique teaching methodology that simplifies complex subjects like Mathematics and General Knowledge, ensuring every student builds a rock-solid foundation. What sets us apart is our team of expert faculty members who bring real-world defense insights into the classroom, fostering a culture of discipline and determination. With a proven track record of over 250+ successful selections, we provide the resources, mock tests, and physical conditioning needed to ensure you are fully prepared for the IMA, OTA, INA, or AFA. Choose a legacy of success and start your journey toward the uniform with us.

Training Highlights

Courses We Offer — CDS

Course Structure

Syllabus

The question paper will be designed to test the candidates’ understanding of English and
workmanlike use of words.

General Knowledge including knowledge of current events and of such matters of everyday
observation and experience in their scientific aspects as may be expected of an educated person who
has not made a special study of any scientific subject. The paper will also include questions on
History of India and Geography of a nature which candidate should be able to answer without special
study.

<p>ARITHMETIC Number System&mdash;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&mdash;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. 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&mdash;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 &amp; their solutions. Set language and set notation, Rational expressions and conditional identities, Laws of indices. TRIGONOMETRY Sine &times;, cosine &times;, Tangent &times; when 0&deg; &lt; &times; &lt; 90&deg; Values of sin &times;, cos &times; and tan &times;, for &times; = 0&deg;, 30&deg;, 45&deg;, 60&deg; and 90&deg; Simple trigonometric identities. Use of trigonometric tables. Simple cases of heights and distances. GEOMETRY Lines and angles, Plane and plane figures, Theorems on (i) Properties of angles at a point, (ii) Parallel lines, (iii) Sides and angles of a triangle, (iv) Congruency of triangles, (v) Similar triangles, (vi) Concurrence of medians and altitudes, (vii) Properties of angles, sides and diagonals of a parallelogram, rectangle and square, (viii) Circles and its properties including tangents and normals, (ix) 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 19 Collection and tabulation of statistical data, Graphical representation frequency polygons, histograms, bar charts, pie charts etc. Measures of central tendency.</p>

ARITHMETIC

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.

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.

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 (i) Properties of angles at a point, (ii)
Parallel lines, (iii) Sides and angles of a triangle, (iv) Congruency of triangles, (v) Similar triangles,
(vi) Concurrence of medians and altitudes, (vii) Properties of angles, sides and diagonals of a
parallelogram, rectangle and square, (viii) Circles and its properties including tangents and normals,
(ix) 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.

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