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NDA preparation with Prepology
Prepology is an adaptive exam-preparation app for NDA (National Defence Academy and Naval Academy Examination). For NDA it has 1,600+ original practice questions across Mathematics, English and General Knowledge (81 topics), timed mock tests on the exam pattern (Paper I: 120 questions, 300 marks; Paper II: 150 questions, 600 marks; 2.5 hours each), a personalised daily study plan, spaced revision and an AI mentor that explains questions. It runs in the browser and on Android, is free to start, and Plus costs ₹49 a month or ₹499 a year. It is for learners aged 18 and over.
NDA is the Union Public Service Commission’s exam for entry to the Army, Navy and Air Force wings of the National Defence Academy and the Indian Naval Academy course.
- 1,600+original practice questions
- 3subjects
- 81topics covered
- ₹0to start · Plus ₹49/month
What Prepology offers for NDA
- Chapter-wise practice: 1,600+ original NDA-style questions across 81 topics, pitched at your level, with an explanation after every answer.
- Timed mock tests (Plus): full papers on the NDA pattern below, with the exam’s marking and negative marking.
- A personalised daily study plan: built around your classes and study hours, weighted by how much each topic counts in the exam, and rebuilt when you fall behind.
- Spaced revision: topics and missed questions come back for review before you forget them.
- AI Mentor: explains questions and answers doubts about your plan and topics.
- Test history and retakes: review every mock test you have taken and retake it.
- Syllabus coverage: see which NDA topics you have practised and which are not assessed yet.
NDA exam pattern
NDA has two papers of 2.5 hours each. Paper I, Mathematics, has 120 questions for 300 marks. Paper II, the General Ability Test, has 150 questions for 600 marks: English 50 (200 marks) and General Knowledge 100 (400 marks). A wrong answer loses one third of that question’s marks.
| Section | Questions | Marks if right | Marks if wrong |
|---|---|---|---|
| Mathematics | 120 | +2.5 | −⅓ of marks |
| English | 50 | +4 | −⅓ of marks |
| General Knowledge | 100 | +4 | −⅓ of marks |
| Total | 270 | 900 marks | |
Marks and timings are from the UPSC notice; question counts follow recent papers. Prepology’s General Knowledge questions cover the static syllabus, not current events. Source: UPSC NDA notification (upsc.gov.in). Exam patterns can change; always check the official notification.
NDA subjects and topics covered
Topics follow the official NDA syllabus. Each topic has its own practice questions, revision and progress.
Mathematics 27 topics · 500+ questions
- Sets, Relations and Venn Diagrams
- Complex Numbers
- Binary Number System
- Sequences and Series (AP, GP, HP)
- Quadratic Equations and Linear Inequations
- Permutations and Combinations
- Binomial Theorem
- Logarithms
- Matrices
- Determinants
- Functions
- Limits and Continuity
- Differentiation
- Applications of Derivatives
- Indefinite Integration
- Definite Integrals and Area under Curves
- Differential Equations
- Statistics
- Probability
- Trigonometric Ratios and Identities
- Inverse Trigonometric Functions
- Heights and Distances; Properties of Triangles
- Coordinate System and Straight Lines
- Circles
- Parabola, Ellipse and Hyperbola
- Three-Dimensional Geometry
- Vector Algebra
English 14 topics · 250+ questions
- Spotting Errors
- Sentence Improvement
- Fill in the Blanks (Sentence Completion)
- Sentence Transformation (Voice, Narration, Simple-Complex-Compound)
- Ordering of Words in a Sentence
- Ordering of Sentences (Para Jumbles)
- Synonyms
- Antonyms
- Idioms and Phrases
- One-Word Substitution
- Homonyms, Confusable Words and Spellings
- Verbal Analogy
- Reading Comprehension
- Cloze Test
General Knowledge 40 topics · 800+ questions
- Matter, Elements, Mixtures and Compounds
- Atomic Structure and Valency
- Air, Water and Common Gases
- Acids, Bases, Salts; Oxidation and Reduction
- Carbon and its Forms
- Chemistry in Everyday Life
- Living Things, Cells and Tissues
- Growth and Reproduction in Plants and Animals
- Human Body and its Organs
- Food, Nutrition, Health and Diseases
- The Solar System and Space
- Eminent Scientists and Discoveries
- The Earth: Shape, Latitudes, Longitudes and Time
- Rocks, Landforms, Earthquakes and Volcanoes
- Oceans: Currents and Tides
- Atmosphere, Weather and Climate
- World Physical Geography
- Physical Geography of India
- Economic Geography of India
- Ancient India
- Medieval India
- Indian Art and Culture
- Advent of Europeans, British Expansion and 1857
- Indian Freedom Movement
- Forces Shaping the Modern World
- Properties of Matter, Density and Pressure
- Motion, Force, Gravitation, Work and Energy
- Heat and Temperature
- Sound
- Light and Optical Instruments
- Magnetism and Electricity
- Working Principles of Everyday Devices
- Indian Constitution
- Union and State Government
- Panchayati Raj, Co-operatives and Community Development
- Indian Economy Basics and Planning
- National and International Organisations
- Environment and Ecology
- Sports (Static)
- Defence Technology and Security Forces
NDA preparation: questions and answers
Is Prepology free for NDA preparation?
Yes, you can start free. The Free plan includes 20 practice questions a day, the daily study plan, revision, notes, flashcards and 20 AI Mentor messages a day. Plus (₹49 a month or ₹499 a year) raises practice to 200 questions a day, adds timed NDA mock tests and allows 150 Mentor messages a day.
Are the questions taken from past NDA papers?
No. They are original questions written for Prepology to the NDA syllabus and pattern, each with a worked explanation. Questions are checked by a reviewer, and you can report a mistake from the app.
Do the mock tests follow the real NDA pattern?
They follow the pattern on this page (Paper I: 120 questions, 300 marks; Paper II: 150 questions, 600 marks; 2.5 hours each). Exam bodies can change the pattern, so check the official notification before your exam.
Is Prepology affiliated with the UPSC or the armed forces?
No. Prepology is an independent study aid. It is not affiliated with or endorsed by the UPSC or the armed forces or any other exam-conducting body.
Who can use Prepology?
Anyone aged 18 or over. Use it in a browser or install the Android app; both sync to the same account.
Start preparing for NDA
Set up in about three minutes: pick NDA, add your study hours, and get your first study plan. No payment needed to start.
Related: CDS, AFCAT, SSB OIR. All exams on Prepology.