CDS Exam Pattern 2024, Marking Scheme IMA, INA, AFA and OTA

Introduction

The Union Public Service Commission (UPSC) conducts Combined Defence Services exam or the CDS Exam twice a year. This exam acts as an entrance test for admission into the various military academies. These academies are Indian Military Academy(IMA), Indian Naval Academy(INA), Air Force Academy(AFA), and Officers’ Training Academy(OTA).

To create a preparation strategy, all the candidates at first must be aware of the CDS Exam Pattern and the syllabus. This article will cover all the details about the CDS Exam Pattern 2024.

This blog will help candidates to understand other details like marking scheme for IMA, INA, AFA and OTA (negative marks for every incorrect answer), duration of each exam and much more.

UPSC CDS Exam Pattern Overview 2024
Exam Mode	Offline
Sections	Indian Military Academy (IMA), Indian Naval Academy (INA) and Air Force Academy (AFA)- Three Officers’ Training Academy (OTA)- Two
Language of exam	Hindi and English
Exam Duration	Two hours for each section of the test
Total Marks	IMA, INA and AFA- 300 OTA- 200(It consists of 2 exam)
Exam Type	MCQ (Multiple Choice question)

CDS Exam Pattern 2024 - Written Test

CDS Exam Pattern 2024 is not same for all military academics. The exam conducted for the Officers’ Training Academy(OTA) is slightly different in terms of total number of sections. However, the questions in both papers will be objective type only. The exam will be in both English and Hindi language. Details of the exam are as follows:

CDS Exam Pattern For Indian Naval Academy (INA), Indian Military Academy(IMA), and Air Force Academy(AFA)

There will be three sections in the exam English, General Knowledge, and Elementary Mathematics. Each section will carry 100 marks and the duration will be 2 hours and for every incorrect answer one third of the marks assigned to that question will be deducted. Maths and GK question paper will be in both English and Hindi language.

Subjects	Exam Duration	Total Questions	Marks
English	2 hours	120	100
General Knowledge	2 hours	120	100
Elementary Mathematics	2 hours	100	100

CDS Exam Pattern for Officers’ Training Academy (OTA)

Elementary Mathematics section is not included in this exam. All other aspects like duration, exam language and total marks, negative marking scheme are same for this exam.

Subject	Exam Duration	Total Questions	Marks
English	2 hours	120	100
General Knowledge	2 hours	120	100

Marking Scheme For CDS Exam 2024

CDS written exam is in MCQ format and there will be four options for each question and for every wrong answer, every incorrect answer one third of the marks assigned to that question will be deducted

If for a single question two or more choices have been marked as answers, it will be considered as wrong answer and as of penalty one third of the marks assigned to that question will be deducted same as mentioned above.

There will be no penalty for unattempted questions

CDS Exam Details	Mathematics	English Exam	General Knowledge
Total marks	100	100	100
Marks for Negative marking	-0.33 marks for each wrong answer	-0.33 marks for each wrong answer	-0.33 marks for each wrong answer

CDS Syllabus 2024

Now you are aware of the exam pattern and marking scheme, have a look at the basic overview of the CDS exam Syllabus.

English

This section will evaluates candidates’ understanding of English. The level of English will be such as may be expected of a graduate of an Indian University.

Reading Comprehension.
Spotting the Error
Synonyms & Antonyms.
Idioms and Phrases.
Sentence Arrangement or Jumbled.
Ordering of words in Sentence.
Sentence Improvement or Sentence Correction

General Knowledge

Current affairs
Indian History
Political Science
Economics
Geography
Environment

Elementary Mathematics

Arithmetic
Geometry
Algebra
Trigonometry
Mensuration
Statistics

CDS exam Syllabus for OTA

Topics covered in CDS OTA examination are GK and English and the syllabus is same as for INA, IMA, and AFA. The only difference is that OTA exam doesn’t include mathematics.

FAQ

Yes, for every wrong answer one third of the marks assigned to that question will be deducted.

No, the exam pattern for OTA is slightly different from IMA, INA, and AFA because these 3 have three sections in exam (English, General Knowledge, Elementary Mathematics), while OTA has only two (English and General Knowledge) but the syllabus is same for all.

General Knowledge and Elementary Mathematics exam is in both Hindi and English language.

No, Maths is not included in OTA exam.

Bachelor's degree is necessary from a UGC(University Grants Commission) recognized university.

Contact Us

It is important to understand the CDS Exam Pattern 2024 for all the candidates who are aiming to join Indian armed force, this will help them to prepare for the exam. For IMA, INA, and AFA, there will be three exams: English, General Knowledge, and Elementary Mathematics, 100 marks each and. Syllabus for OTA candidates is same, the only difference is that they don’t have to give Maths exam. So, create your study schedule based on the exam syllabus, and prepare for your CDS Exam 2024.

If you need help for the CDS exam, Cadets Defence Academy, Best CDS Coaching in Dehradun will help you do so. With our experts guidance and comprehensive study materials, you will have all the skills and knowledge required to prepare for CDS exam.

Reach Us

How to Score 150+ Marks in NDA Mathematics: The Complete Strategy Guide

How to Score 150+ Marks in NDA Mathematics: The Complete Strategy Guide Table of Contents If you are preparing for the National Defence Academy entrance exam and wondering how to score 150+ marks in NDA Mathematics, you are not alone. Mathematics is one section that can either make or break your NDA written exam result. With the right preparation strategy, consistent practice, and smart use of resources like NDA mock tests and previous year question papers, crossing the 150-mark threshold is absolutely achievable. What Is the NDA Mathematics Paper Structure? Before diving into preparation tips, let’s understand the exam pattern clearly. Feature Details Total Marks 300 Number of Questions 120 Marks per Question 2.5 marks Negative Marking 0.83 marks per wrong answer Duration 2.5 Hours Difficulty Level Class 11–12 standard To score 150+ marks, you need to correctly attempt at least 60–65 questions out of 120. That means accuracy matters more than attempting every question blindly. What is Air Force Y Group? This is one of the most frequently asked questions by NDA aspirants. Here’s the honest answer: 120–149 marks — Average; may not clear the cutoff in competitive years 150–199 marks — Good; safe zone for most cutoffs 200+ marks — Excellent; significantly boosts your overall written exam score The NDA Mathematics cutoff varies each year depending on the number of candidates and difficulty level of the paper. However, consistently aiming for 150+ is the benchmark that separates serious aspirants from the rest. How to Strong Maths for NDA? A Chapter-Wise Strategy Understanding the marking scheme helps you make smarter decisions inside the exam hall. Formula: Score = (Correct Attempts × 2.5) – (Wrong Attempts × 0.833) Scenario Correct Wrong Unattempted Final Score Scenario A 65 10 45 154.67 Scenario B 70 20 30 158.33 Scenario C 60 5 55 145.83 Scenario D 75 15 30 175.05 Key Insight: Scenario A (65 correct, only 10 wrong) is safer and yields 150+ compared to Scenario B where reckless attempts reduce the net score. Never guess randomly — skip a question if you are less than 60% sure. Is NDA Maths Tougher Than IIT? This is a common question among aspirants transitioning from JEE preparation. Short answer: No, NDA Maths is not tougher than IIT JEE. Here’s a quick comparison: Parameter NDA Mathematics IIT JEE Mathematics Level Class 11–12 NCERT Class 11–12 + Advanced Type MCQ (Single correct) MCQ + Integer + Matrix Depth Conceptual & Application Deep derivation & Proof Time Pressure Moderate Very High Negative Marking Yes (0.833) Yes (1/3 or 2/3) NDA Maths tests your speed, accuracy, and solid concept clarity rather than advanced problem-solving depth like IIT. If you have a strong Class 11–12 foundation and practice regularly, scoring 150+ is well within reach. Study Plan to Score 150+ in NDA Mathematics Month-Wise Preparation Strategy Month 1 — Foundation Building Complete NCERT Class 11 and 12 Mathematics thoroughly Solve all examples and exercises from NCERT Start your NDA Mathematics Formula Book — note down all formulas by topic Month 2 — Chapter-Wise Practice Focus on high-weightage chapters: Algebra, Trigonometry, Calculus Solve 30–40 topic-specific questions daily Begin using Mission NDA book for concept reinforcement Month 3 — Previous Year Papers + Mock Tests Solve at least 10 years of NDA previous year question papers Attempt full-length NDA mock tests every weekend Analyse each mock test — identify weak areas and revisit them Month 4 — Revision + Speed Drills Revise your NDA Mathematics Formula Book daily Practice speed-solving: 120 questions in 2.5 hours Prioritise skipping strategy for uncertain questions Daily Study Routine for NDA Maths Time Slot Activity 6:00 AM – 6:20 AM Formula revision (NDA Maths Formula Book) 9:00 AM – 11:00 AM New chapter study or concept revision 4:00 PM – 5:30 PM Practice questions (topic-wise or previous papers) 8:00 PM – 9:00 PM Error analysis — review wrong answers Consistency over intensity. 3–4 hours of focused daily practice beats 8 hours of scattered study. Best Resources for NDA Mathematics Preparation Choosing the right resources saves precious time. Here’s what experts at Cadets Defence Academy recommend: Resource Purpose NCERT Class 11 & 12 Maths Foundation and concept clarity Mission NDA Book Comprehensive NDA-specific preparation NDA Mathematics Formula Book Quick revision of all formulas NDA Previous Year Question Papers Pattern recognition and exam practice NDA Mock Tests Full-length timed practice and score tracking R.S. Aggarwal Mathematics Extra practice for Algebra and Arithmetic Always solve NDA previous year question papers before attempting mock tests. They give you a real feel of the exam pattern and difficulty level. Common Mistakes That Cost You Marks in NDA Maths Even well-prepared students lose marks due to avoidable errors. Watch out for these: Mistake 1 — Attempting all questions without accuracy check The negative marking system punishes reckless attempts. Skip questions when unsure. Mistake 2 — Ignoring the NDA Maths syllabus Many aspirants study topics that are not part of the NDA Mathematics syllabus. Always cross-check the official syllabus before starting a new topic. Mistake 3 — Not practising with a timer Solving 120 questions in 150 minutes means roughly 75 seconds per question. Without time-bound practice through NDA mock tests, most students fall short. Mistake 4 — Skipping Coordinate Geometry and Vectors These topics seem minor but together carry 15–20% of the paper. Ignoring them leaves too many marks on the table. Mistake 5 — Not maintaining a formula book Students who revise formulas daily outperform those who rely on memory during the exam. Build your NDA Mathematics Formula Book from Day 1. Final Tips to Cross the 150+ Mark in NDA Mathematics Complete the NDA Maths syllabus at least 6–8 weeks before the exam Dedicate at least one NDA mock test every week in the final 2 months Use NDA previous year question papers to understand which algebra chapters for NDA appear most frequently Revise your NDA Mathematics Formula Book without fail — especially trigonometric identities, integration formulas, and algebraic rules On exam day, attempt your strongest chapters first

Learn more

IMA Passing Out Parade: Spring Term 2026

IMA Passing Out Parade: Spring Term 2026 Table of Contents What happened? The Indian Military Academy, Dehradun held its 158th Passing Out Parade on June 13, 2026. Who reviewed it? President Droupadi Murmu reviewed the parade. Historic milestone? Yes — this was the first-ever IMA batch to include women cadets (9 lady cadets commissioned). Courses passed out? 158th Regular Course and 141st Technical Graduate Course. 481 Indian officer cadets and 34 cadets from 16 friendly foreign nations. How many cadets? Over 515 officer cadets were commissioned. What is “Antim Pag”? The symbolic final step cadets take to cross the threshold from trainee to officer. IMA Passing Out Parade Dehradun June 2026 — What Happened on June 13? The IMA Passing Out Parade Dehradun held on 13 June 2026 was unlike any commissioning ceremony the Indian Military Academy had seen in its entire 94-year history. On the morning of June 13, the historic Drill Square in front of the iconic Chetwode Building came alive with hundreds of families who had travelled from every corner of India. Military bands filled the air with patriotic music. And then — the thundering sound of 515 officer cadets marching in perfect formation across the parade ground. Every cadet on that square had earned their place through years of relentless effort — physical conditioning, tactical training, academic rigour, and mental toughness that most people never experience. For NDA aspirants and defence coaching students watching this parade, this is not a distant dream. This is exactly where your preparation is taking you — toward your own Antim Pag, your own commissioning ceremony, your own moment on the Drill Square. Why the IMA Passing Out Parade Dehradun Is the Goal Every NDA Aspirant Must Visualise The IMA Passing Out Parade Dehradun is the official finish line of India’s most prestigious military commissioning route. As an NDA aspirant, your journey begins with cracking the UPSC NDA written exam, clearing the SSB interview (Services Selection Board), completing three years of tri-service training at the National Defence Academy, Pune, and then one full year of Army-specific pre-commissioning training at IMA Dehradun. The IMA Spring Term Passing Out Parade or Winter Term POP is where all of that culminates. When you visualise standing on that Drill Square — when you picture your family watching from the stands as your rank badge is pinned on your shoulder — your preparation stops being just about marks. It becomes about mission. That mental picture is one of the most powerful tools any defence aspirant can have. Understanding India’s Premier Military Commissioning Ceremony The Indian Military Academy Passing Out Parade is the official graduation and commissioning ceremony held at IMA Dehradun. It marks the successful completion of officer cadet training and the formal induction of new officers into the Indian Army. The IMA Spring Term 2026 Passing Out Parade — like all POP ceremonies — included several key elements that every aspiring officer should understand: Precision Drill and March Past: All graduating companies march in synchronized formation before the Reviewing Officer, demonstrating the discipline and military bearing developed through months of intensive officer cadet training. Inspection by the Reviewing Officer: At the IMA commissioning ceremony 2026, President Droupadi Murmu conducted the inspection — a role typically filled by the President, Vice President, Army Chief, or a senior dignitary. The Antim Pag: The emotional and symbolic final step across a threshold on the Drill Square — the moment a gentleman cadet or lady cadet officially becomes a commissioned officer of the Indian Army. The Pipping Ceremony: Newly commissioned officers receive their Lieutenant’s rank badge, pinned by a parent, spouse, or senior officer — widely considered the most emotionally charged moment of the entire day. Award Presentations: Honours like the Sword of Honour, Gold Medal, and President’s Silver Medal are presented to cadets who demonstrated exceptional all-round performance during training. Since its founding on 1 October 1932, the Indian Military Academy has commissioned over 65,000 officers who have served across wars, peacekeeping missions, and counter-terrorism operations. IMA POP 2026 — Complete Parade Details at a Glance Detail Information Event IMA Spring Term 2026 Passing Out Parade Date 13 June 2026 Venue Chetwode Building Drill Square, IMA Dehradun Reviewing Officer President Droupadi Murmu Indian Officer Cadets Commissioned 481 Foreign Cadets Commissioned 34 (from 16 friendly nations) Women Officer Cadets (Historic First) 9 Total Officers Commissioned 515 Courses Graduated 158th Regular Course & 141st Technical Graduate Course (TGC) IMA Established 1 October 1932 Total IMA Alumni Over 65,000 commissioned officers Historic First: Women Officers Commissioned at IMA Passing Out Parade Dehradun 2026 The IMA Passing Out Parade Dehradun June 2026 will be recorded in military history for one reason above all — for the first time in 94 years, women officer cadets crossed the Antim Pag at the Indian Military Academy and were commissioned as Lieutenants in the Indian Army. Nine women completed the full NDA–IMA commissioning route — something that no woman had ever done in the Academy’s history before June 13, 2026. Their story traces back to a Supreme Court ruling in 2021 that directed the National Defence Academy to admit women. In August 2022, the first female cadets joined NDA’s 148th Course at Khadakwasla, Pune. After completing three years of intense tri-service training — the same curriculum as their male counterparts — they moved to the Indian Military Academy, Dehradun in July 2025 for the final year of pre-commissioning training. On June 13, 2026 — they took the Antim Pag. President Droupadi Murmu, reviewing the IMA commissioning ceremony 2026, called it a “watershed moment” — not merely for the IMA but for the entire defence establishment of India. She reminded the passing out batch that as Army officers, their core duty would be to lead, guide, and care for their soldiers — and expressed certainty that many more women would follow this path in the coming years. For every girl in India who has ever thought about wearing the uniform — this parade proved that the path is real, the standards

Learn more

Complete Guide to Scoring 400+ in NDA General Knowledge 2026: Subject-Wise Topics, High-Scoring Strategies & Study Plan

Complete Guide to Scoring 400+ in NDA General Knowledge 2026: Subject-Wise Topics, High-Scoring Strategies & Study Plan Table of Contents Introduction: Why NDA General Knowledge Section is Your Key to Success The National Defence Academy (NDA) examination is one of India’s most prestigious defence entrance exams, conducted twice yearly by UPSC. Among all sections, the General Knowledge (GK) section holds the highest weightage, carrying 400 marks out of 900 total marks—nearly 45% of your entire score. Think about it: while most students focus intensely on Mathematics (300 marks), they often overlook that the General Ability Test (GAT) carries 600 marks in total, with GK being half of it. This imbalance in student preparation creates a massive opportunity for you to score significantly higher than your competition. At Cadets Defence Academy, we’ve trained hundreds of successful NDA cadets, and one pattern we’ve consistently observed is that students who master the GK section secure their selection in the first attempt. This comprehensive guide will show you exactly how to approach NDA GK preparation strategically to score 400+ marks Part 1: Understanding the NDA General Knowledge Section Structure What Makes Up Your 400 Marks? The General Knowledge section of NDA is divided into six major subject areas, each carrying roughly equal weightage (60-80 marks each): Subject Marks Questions Difficulty Scoring Potential Physics 80-100 25-30 Moderate Very High Chemistry 80-100 25-30 Moderate Very High History 60-80 20-25 Low-Moderate High Geography 60-80 20-25 Moderate High General Science & Biology 60-80 20-25 Easy-Moderate Very High Current Affairs & Static GK 60-80 20-25 Moderate High (Requires Strategy) Total: 400 marks from approximately 150 questions The Critical Factor: Negative Marking Here’s what most students don’t understand about NDA GK strategy: Correct Answer: +2.67 marks Incorrect Answer: -0.83 marks (0.33 × 2.67) Unanswered: 0 marks This means one wrong answer costs you 3.5 marks in net score. If you attempt 100 questions and get 20 wrong, you lose 67 marks—enough to drop your rank from top 500 to outside top 1000. Part 2: Subject-Wise High-Scoring Topics for NDA GK (2026) Physics Section: Scoring 80-100 Marks (Critical Topics) Physics in NDA isn’t about solving complex derivations—it’s about understanding practical applications and fundamental principles. Here are the highest-weightage topics that appear repeatedly: Mechanics (30-35% of Physics marks) Force, Mass & Momentum: Laws of motion, momentum conservation, impulse Why it matters: Appears in 4-6 questions per exam Study tip: Focus on F=ma applications in real-world scenarios Energy & Work: Work-energy theorem, potential energy, kinetic energy, power Why it matters: 3-4 questions per exam Study tip: Understand energy conversion, not just formulas Circular Motion & Gravitation: Centripetal force, Newton’s law of gravitation, escape velocity Why it matters: 2-3 questions per exam Study tip: Satellite motion is a favorite UPSC topic Waves & Sound (15-20% of Physics marks) Simple Harmonic Motion Sound properties, Doppler effect Score potential: 3-4 questions per exam Electricity & Magnetism (25-30% of Physics marks) Ohm’s Law & Circuit Analysis: Resistance, current, voltage, power Why it matters: Most asked topic in recent exams Study tip: Practice circuit problems; UPSC loves combination circuits Electromagnetic Induction: Faraday’s law, Lenz’s law, transformers Why it matters: 2-3 questions per exam Magnetism & Electrostatics: Basic concepts, applications in motors Light & Optics (10-15% of Physics marks) Reflection, refraction, lenses, mirrors Score potential: 2-3 questions per exam Modern Physics (5-10% of Physics marks) Atomic structure, radioactivity, nuclear fission Score potential: 1-2 questions per exam Strategy for Physics (Target: 85 marks) Week 1-2: Master mechanics concepts Week 3-4: Electricity & magnetism (highest weightage) Week 5: Waves, sound, light Week 6-8: Daily revisions + mock tests Resources: NCERT Physics (Class 11 & 12), Focus on “Examples & Applications” sections Chemistry Section: Scoring 80-100 Marks (Critical Topics) Chemistry requires balancing memorization with understanding. Here’s the breakdown of highest-scoring topics: Periodic Table & Chemical Bonding (20-25%) Periodic trends, properties of elements Ionic, covalent, metallic bonding Why it matters: 4-5 questions per exam Study tip: Create a visual periodic table chart; memorize trends only States of Matter (15-20%) Gases: Boyle’s law, Charles’s law, ideal gas equation Liquids & solids: Properties, phase transitions Why it matters: 3-4 questions per exam (often tricky) Study tip: Focus on gas laws applications; UPSC loves real-world scenarios Thermodynamics & Energy Changes (15-20%) Heat, temperature, internal energy Exothermic & endothermic reactions Why it matters: 2-3 questions per exam Acids, Bases & Salts (10-15%) pH, buffers, neutralization Salt hydrolysis Why it matters: 2-3 questions per exam Organic Chemistry (10-15%) Simple organic compounds Functional groups Why it matters: 2-3 questions per exam Study tip: Learn structures, not detailed mechanisms Oxidation & Reduction (10-15%) Oxidation numbers Balancing redox equations Why it matters: 2 questions per exam Environmental Chemistry (5-10%) Pollution, conservation Green chemistry concepts Why it matters: 1-2 questions per exam Strategy for Chemistry (Target: 85 marks) Week 1-2: Periodic table, bonding, states of matter (highest marks potential) Week 3-4: Acid-base chemistry, thermodynamics Week 5-6: Redox, organic basics Week 7-8: Revisions + environment chemistry updates Resources: NCERT Chemistry (Class 11 & 12), Previous year NDA papers for pattern understanding History Section: Scoring 70+ Marks (Smart Study Approach) History in NDA focuses heavily on India’s freedom struggle and medieval period. Surprisingly, many students over-prepare for history by memorizing every detail—you don’t need that. High-Scoring History Topics: Period Marks % Key Focus Questions/Exam Medieval India (12-18 century) 25-30% Mughal empire, rulers, architecture 4-5 British Colonial Period 30-35% East India Company, 1857, reforms 5-6 Indian Independence 30-35% Leaders (Gandhi, Nehru, Ambedkar), key movements 5-6 Ancient India 10-15% Empires (Maurya, Gupta), culture 2-3 Critical Topics to Master: Mughal Empire: Akbar, Aurangzeb, architecture (Taj Mahal, Red Fort) East India Company Expansion: Battle of Plassey, Battle of Buxar 18th-19th Century Reforms: Ram Mohan Roy, Brahmo Samaj, Arya Samaj Freedom Struggle: Separate events (Sepoy Mutiny 1857, Swadeshi Movement, Quit India) Freedom Fighters: Mahatma Gandhi, Jawaharlal Nehru, Sardar Patel, BR Ambedkar Constitution & Early Post-Independence: Drafting, Dr. Ambedkar, first years Strategy for History (Target: 70 marks) Don’t memorize unnecessary dates; understand cause-effect Create timeline charts for visual learning

Learn more

CDS Exam Pattern 2024, Marking Scheme IMA, INA, AFA and OTA

Table of Contents

Introduction

CDS Exam Pattern 2024 - Written Test

CDS Exam Pattern For Indian Naval Academy (INA), Indian Military Academy(IMA), and Air Force Academy(AFA)

CDS Exam Pattern for Officers’ Training Academy (OTA)

Marking Scheme For CDS Exam 2024

CDS Syllabus 2024

English

General Knowledge

Elementary Mathematics

CDS exam Syllabus for OTA

FAQ

Contact Us

Reach Us

How to Score 150+ Marks in NDA Mathematics: The Complete Strategy Guide

IMA Passing Out Parade: Spring Term 2026

Complete Guide to Scoring 400+ in NDA General Knowledge 2026: Subject-Wise Topics, High-Scoring Strategies & Study Plan

CDA - BEST NDA COACHING CENTRE COURSES

Useful Links

Download Corner

Student's Area