UPSC Combined Defence Services (CDS) Course

Every year, more than 3 lakh candidates apply for CDS exam conducted by UPSC. Whether you are already taking some coaching or preparing by yourself, improving your question solving skills is essential for your success in CDS.

But how do you improve your knowledge and skills, especially when you have so much to learn in very limited time? That's the challenge we wanted to solve when we started e-learning courses.

This online email course is exclusively for CDS aspirants who are serious about clearing it. In short, online practice course along with powerful email lessons that will make you excel in CDS!

  CDS 2020 - February CDS 2020 - November
Login access to learning portal
Daily questions at your email
Course learning path
Track your progress
Chapter-wise important questions
Answers and solutions of questions
Revision study material and notes
Clear your doubts through email
100% 7-day money back guarantee
Price (One Time) ₹760 ₹960

Course Coverage

Stone Age - Paleolithic, Mesolithic, Neolithic; Chalcolithic Age; Bronze Age; Indus Valley Civilization; Vedic Period; Post-Vedic Age - Mahajanapadas; Buddhism and Jainism; Magadh Empire; Mauryan Age; Sangam Age, Kushan Empire, Gupta Empire, Post Gupta Period; South Indian Dynasties

Delhi Sultanate, Important Dynasties, Mughal Dynasty, Emergence of New States

British East India Company Rule - Reasons from Coming to India, Methods of Colonisation; Important Battles; Economic Impact -  Land Revenue Settlements; Impact on Society and Culture; Protests Movement; Regulating Act 1773; Governor Generals, Viceroys of India; Religious and Social Awakening; Resistance Movements against British Rule - Peasant Revolts, Tribal Revolts

Revolt of 1857 - Causes, Suppression, Impact; Origin of Nationalism; Indian National Congress; Partition of Bengal; Radical Nationalists; Muslim League; Morley - Minto Reforms; First World War; Mahatma Gandhi; Jallianwala Bagh Massacre; Non-Cooperation Movement - Dandi March; Revolutionaries; Simon Commission, Purna Swaraj, Civil Disobedience Movement, Cripps Mission; Second World War; Quit India Movement, Cabinet Mission, Mountbatten Plan; Partition and Independence of India

Constitution - Meaning, Formation, Parts, Schedules; Constitutional Values and Salient Features; Federal System in India; Parliamentary Form of Government; Fundamental Rights, Fundamental Duties; Directive Principles of State Policy; Bills; Constitutional Bodies; Amendments

Local Government - Rural, Urban; Growth of Local Governments, 73rd and 74th Amendments, Three Tier Structure, Eleventh Schedule; Panchayati Raj System; Municipal Corporations; District Administration

Council of Ministers, Prime Minister; President, Vice President; CAG; State Level - Governor, Chief Minister & Council of Ministers

Lok Sabha, Speaker, Rajya Sabha; Legislative Procedures, Money Bills; State Legislature - Legislative Assembly, Legislative Council, Functions

Structure of Judiciary; Judges; Supreme Court - Jurisdiction, PIL, Judicial Review; State Level - High Court, Subordinate Courts

Political Parties - Evolution, Growth, Party System; Elections in India; From Nehru to Shastri to Indira Gandhi; Congress Split; Emergency; Coalition Government

Solar System, Movements of the Earth, Spherical Coordinates, Standard Time, Structure, Continents, Oceans, Atmosphere, Climate

Location; States and UTs; Dimensions; Population; Neighbours; Agriculture; Physical Divisions - Mountains, Plains, Peninsular Plateau, Desert, Coastal Plains, Islands; Soils; River Systems - Himalayan, Peninsular; Minerals

Location, Indian Standard Time, Size, Mountains - Northern Mountain, Himalayas, Trans Himalayas, Puranchal; Plains- Western Plain, Ganga-Brahmaputra Plain; Indian Plateau -Central Highlands, Deccan Plateau; Indian Desert; Coastal Plains; Islands

Himalayan and Peninsular Rivers; Himalayan - Indus, Ganga, Brahmaputra; Peninsular - Narmada, Tapi, Mahanadi, Godavari, Krishna, Kaveri

Factors Affecting Climate; Mechanism of Monsoon; Diverse Climate & Weather Conditions; Climatic Zones; Cycle of Seasons - Winter, Summer, South-West Monsoon, Retreating South-West Monsoon, North-East Monsoons; Rainfall

Biodiversity - Meaning, Significance; Natural Vegetation - Tropical Evergreen Forests, Tropical Deciduous Forests. Thorn Forests, Tidal Forests, Himalayan Forests; Wildlife - Wildlife Sanctuaries, National Parks, Tiger Reserves, Wetlands, Biosphere Reserves; Conservation of Biodiversity

Types of Farming - Subsistence / Commercial, Intensive / Extensive, Plantation, Mixed; Cropping Pattern, Irrigated and Rainfed Farming, Major Crops - Food grains, Commercial crops, Plantation crops, Horticulture; Features and Challenges of Indian Agriculture

Classification of Soils - Alluvial Soils, Black Soil, Red and Yellow Soil, Laterite Soil, Arid Soils, Saline Soils, Peaty Soils, Forest Soils

Modes of Transport - Land (Road, Rail), Water, Air; Communication - Personal, Mass; New Communication Technology

Classification of Mineral Resources, Distribution, Ferrous and Non-Ferrous Minerals, Mineral Fuels, Renewable Energy, Industries, Cotton Textile Industry, Sugar Industry, Iron and Steel Industry

Meaning; Branches - Micro, Macro; Positive and Normative Economics; Human Wants; Goods and Services; Types of Economies; Economic Development; Sectors of Economy; Central Problems

Barter System; Money - Need, Functions, Types; Bank - Functions, Types; Credit Creation; Monetary Policy, SLR and CRR, Open Market, Policy Rates; RBI

Circular Flow of Income, Intermediate and Final Goods, Gross and Net Measure, Market Price and Factor Cost, GDP and NDP, GNP and NNP, Real GDP and Nominal GDP, CPI

Government Budget, Structure of Budget, Deficit and Surplus Budget, Budgetary or Fiscal Policy

Trade - Export and Import; Balance of Payments, Foreign Exchange Market, Foreign Exchange Reserves, National Income in Open Economy

Indian Economy at Independence; Indian Economy after Independence; Features of Indian Economy; Economic Planning; Agriculture, Industry and Trade; Economic Liberalization; Three Sectors - Primary, Secondary, Tertiary; Challenges

Need for measurement, precision and accuracy; Units of measurements: SI units, derived units, multiples and sub-multiples, correct way of expressing units; Measurement of length, mass and time; Least count and range of meter scale, measuring tape, measuring cylinder, pan balance, stop watch, quartz clock; Dimensions, Dimensional Formulas

Types of motion: translational, rotational and oscillatory; Uniform and non-uniform motion; Distance and displacement; speed, average speed, velocity and acceleration; Graphical representation: distance-time and speed-time graphs; Equations of motion; Uniform circular motion; First law of motion, Inertia; Momentum; Second law of motion; Conservation of momentum; Third law of motion; Friction

Work done by a force; Relation between work and energy; Unit of energy; Types of energy: mechanical (kinetic and potential); thermal, light, sound, electrical, chemical and nuclear; Power and its unit; Transformation and conservation of energy

Thrust and Pressure, Hydrostatics, Elasticity, Surface Tension, Flow of Liquids, Viscosity, Buoyancy and Archimedes Principle

Force of gravitation; Gravitational law; Acceleration due to gravity; Mass and weight; Motion of an object under gravity in one dimension; Free fall and weightlessness

Nature and characteristics of waves; Transverse and longitudinal; Types of waves: mechanical (Sound) and electromagnetic waves, propagation; Characteristics and nature of sound; Measure & Quality of Sound; reflection of sound (SONAR)

Thermal energy and temperature; Effects of heat; Thermal expansion of solids, liquids and gases; Change of state and latent heat; Specific heat; Measurement of temperature; Transfer of Heat; Conductors and Insulators

Reflection of light: image formation by a plane and a spherical mirror; Mirror formula; Applications of mirrors; Refraction of light; Formation of image by a lens; Lens formula; Magnification of image and power of lens; Use of lenses in correcting defects of vision; Dispersion of light through glass prism; Spectrum of white light; Scattering of light and its applications

Electrical charges; Electrostatic force; Electrostatic potential and electric current; Electric cell; Conductors and Insulators; Ohm’s law; Resistances in series and parallel; Heating effect of electric current and its applications; Commercial unit of electric energy, Electric power

Magnets and magnetic field; Field lines. Magnetic effect of electric current; Magnetic field due to a current carrying solenoid; Electromagnet, electric bell; Force on a current carrying conductor placed in a magnetic field; Electromagnetic induction; Direct current and alternating current; Electric circuits; Hazards of electricity and safety measures

Particulate nature of matter; States of matter - Solid, Liquid and Gas; Conversion of states; Effect of factors like pressure and temperature; Elements, compounds and mixture; Homogeneous and Heterogeneous mixtures; Solutions and concentration of solutions; Suspensions; Separation of mixtures and purification

Law of Chemical Combinations; Dalton's Atomic Theory; Atoms and Molecules; Atomic and molecular masses; Mole concept; Avogrado number; Molar Mass; Chemical Equation; Type of Reactions; Charged particles in matter; Thomson model; Rutherford Model; Bohr Model; Neutrons; Distribution of Electrons in Various Shells; Valency; Atomic number and mass number; Isotopes and isobars; Average or fractional atomic mass

Noble gas configuration as stable configuration; Combination of elements through transfer of electrons - ionic bonds; Properties of ionic substances; Combination of elements through sharing of electrons - covalent bonds; Single, double and triple bonds; Lewis-dot formulae; Properties of covalent substances

Indicators; Dissociation of Acids; Strong and Weak acids; Reactions of Acids; Dissociation of Bases; Strong and Weak Bases; Reaction of Bases; Self Dissociation of Water; Neutral, Acidic and Basic Solutions; pH; Salts; Commonly used salts - Baking Soda, Washing Soda, Plaster of Paris, Bleaching Powder

Early efforts at classifying elements - Dobereiner’s Triads, Newlands’ Law of Octaves; Mendeleev’s Periodic Law; Modern Periodic Law, Periodic Table; Types of elements, Periodic Trends - atomic size and metallic character

Physical properties; Chemical properties of metals - reactions with oxygen, water and with common acids and bases; Corrosion; Reaction of non-metals with oxygen; Source of metals; Reactivity series of metals; Uses

Properties of carbon; Allotropes; Compounds of carbon; Oxides; Catenation properties of carbon - Chains, branches and rings; Hydrocarbons; Saturated and unsaturated hydrocarbons, Homologous series, Isomerism, IUPAC Nomenclature; Functional derivatives, Alcohols; Useful compounds of carbon - Ethanol and Acetic acid

Classification - five kingdoms; Biodiversity, levels of biodiversity, patterns of diversity; Biosphere and Ecosystem; History of Life on Earth - Prebiotic Earth conditions, Origin of life and its diversification; Evolution: Darwin’s contributions, Neo-Darwinism; Major events in the history of life; Human evolution

Cell as a basic unit of living organisms, Cell theory; Prokaryotic and eukaryotic Cells; Plant and animal cells; Biomolecules - DNA, RNA & protein synthesis; Cell structure: organelles and their functions; Cell division - mitosis, meiosis; Cell to tissues - Plant and animal tissues and their functions; Stem cell technology

Energy for living, harnessing energy by photosynthesis; Heterotrophy as a mode of nutrition; Nutritional disorders, balanced diet; Respiration - organs (lungs and gills); Circulation (transport) in plants and animals; Excretion; Technological advances in medical diagnosis and treatment: ECG & Dialysis; Nervous system - brain, spinal cord, neurons, nerves; Major endocrine glands and their secretions, functions, hormone deficiency disorders; Sense organs - vision, hearing and taste, eye

Reproduction in plants and animals; Asexual and sexual reproduction; Tissue culture and cloning; Human reproduction; Sexually transmitted diseases, HIV and AIDS; Heredity and variation; Mendelian inheritance; chromosomes; genes - DNA replication, sex determination, blood groups; Human genome; Hereditary disorders; Genetic engineering; Genetic counseling

Food Production - Agriculture, fisheries, animal husbandry, live stock management, animal breeding; Role of technology and biotechnology in food production; Autotrophic and heterotrophic nutrition; Photosynthesis; Components of food; Communicable and non-communicable diseases; Causes, mode of transmission, symptoms, prevention and control  of influenza, tuberculosis, malaria, dengue, amoebiasis; Health disorders caused by environmental pollution; Immunization; First Aid; Diagnostic tools - x-ray, MRI and Ultrasound

Ecosystem, Biotic Community, Food Chain and Food Web, Energy Flow, Biogeochemical Cycles, Adaptations, Population

Natural Disasters, Human Population, Deforestation, Pollution, Waste, Ozone Layer, Global Warming, Photochemical Smog, Acid Rain

Nouns, Pronouns, Verbs, Adjectives, Adverbs, Preposition, Conjunctions, Interjections

Intransitive Verb Patterns, Transitive Verb Patterns, Regular & Irregular Verbs, Categories of Verbs, Tenses, Participle, Infinitives, Gerunds, Auxiliaries & Modal Verbs, Voice

Parts of a Sentence, Types, Simple Sentence, Compound Sentences, Complex Sentences, Conditional Sentences

RC Skills, Writing Styles, Tone of Writing, Logical Mapping of Passage

Linking the Sentences, Noun Pronoun Relationship, Acronym Approach, Time Sequence Approach, Structure Approach

Average Formula, Properties, Central Value, Weighted Average, Average Speed

Least Common Multiple, Highest Common Factor, Applications of LCM and HCF

Comparison of Ratio, Proportion, Variation

Meaning of Percent; Conversion to and from fractions and decimals; Percentage Ratio Equivalence; Percentage Changes; Product Stability Ratio; Applications of Percentage

One Day Work, Fundamental Rules, Time Work Equivalence, LCM Method of Solving, Collective Work, Pipes and Cisterns

Distance Time Formula, Average Speed, Relative Speed, Problems on Trains, Boats and Streams, Circular Tracks

Linear Polynomial; Linear Equation in One Variable - Solution, Word Problems; Linear Equations in Two Variables - Graph, Simultaneous Linear Equations - Graphical Method, Algebraic Method; Word Problems; Inequality

Arithmetic Progression - General term, Sum of first n terms; Arithmetic Sequence, Geometric Sequence, Harmonic Progression, Relation Between AGH, Sum of Natural Series

Perimeter, Area; Heron's Formula; Triangle; Rectangle and rectangular paths; Circle and circular paths, Sector of Circle; Combination of figures; Square, Parallelogram, Rhombus, Trapezium, Quadrilateral; Solid Figures - Surface area and Volume; Cuboid, Cube, Cylinder, Cone, Frustum of Cone, Sphere, Hemisphere, Pyramid

Data - Collection, Presentation; Cumulative frequency table; Graphical representation - bar, histogram, frequency polygon; Measures of Central Tendency - Mean, Median, Mode; Raw data and Ungrouped data

Types of Sets, Operation on Sets, Important Formulas, Venn Diagram

Type of Numbers - Natural, Whole, Integers; Rational Numbers; Fundamental Operations; Decimal Representation; Irrational Numbers; Even and Odd Numbers; Factors and Multiples; Prime and Composite Numbers; Factorization, Divisibility; Factorial; Exponents, Surds and Indices; Fractions and Decimals

Remainder Theorem, Cyclicity of Numbers, Successive Division, Prime Numbers, Fermat's Remainder Theorem, Euler's Remainder Theorem

Weighted Average, Rule of Alligation, Mixing Pure Component, Mixtures,Removal and Replacement

Terms and formulas - Cost Price, Sales Price, Profit, Loss; Honest Ways of Profit, Dishonest Ways of Profit; Discount

Simple Interest - Principal, Interest, Amount, Formula; Compound Interest - Conversion period, formula; Installment Buying; Rate of Growth and Depreciation

Introduction to Algebra - Variables, Constants; Algebraic Expressions and Polynomials; Degree of Polynomial; Zero of Polynomial; Addition, Subtraction, Multiplication, Division; Algebraic Formulas; Factorisation; HCF and LCM of Polynomials

Standard Form; Solution - Factor Method, Quadratic Formula; Word Problems

Point, Line, Angles; Pairs of Angles; Lines and Angles; Polygons; Triangles - Types, Properties, Special Triangles, Congruence, Similarity, Theorems; Concurrent Lines - Incenre, Circumcentre, Orthocentre, Medians; Quadrilateral - Types, Properties; Mid-Point Theorem; Equal-Intercept Theorem; Diagonal and Area; Paralellograms and Triangles; Circles - Terms, Arc, Theorems, Angles in Circle; Cyclic Quadrilateral; Secants and Tangents; Locus

Co-ordinate System - Quadrants; Coordinates of Point; Distance between two points; Section formula; Mid-point formula; Centroid of triangle

Trigonometric Ratios; Relation between T-Ratios; Trigonometric Identities; Complementary Angles; T-Ratios of Special Angles; Applications of Trigonometry - Heights and Distances

Random Experiment and Outcomes; Probability of Event, Equally Likely Events, Exhaustive Events, Mutually Exclusive Events, Sample Space, Independent Events; Conditional Probability

Fundamental Principles of Counting, Permutation, Linear Permutation, Circular Permutation, Combination, Distribution of Things into Groups, Number of Terms in Polynomial Expansion, Rank of Word

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