Introduction
Mathematics in the NDA-I 2026 Exam is one of the most scoring sections, carrying 300 marks out of 900 in the written test. With 120 questions to be solved in just 2.5 hours, NDA aspirants must have concept clarity, time management skills, and problem-solving shortcuts to maximize their score.
In this article, we cover:
Important chapters for NDA Mathematics 2026
Shortcuts and tricks for faster solving
Best preparation strategy
How Victor Growth Coaching helps you master NDA Maths
NDA-I 2026 Mathematics Exam Overview
Total Questions: 120
Total Marks: 300
Duration: 2.5 hours
Negative Marking: -0.83 marks per wrong answer
👉 To clear the cut-off, aspirants should aim to score at least 120+ marks in Mathematics (40% accuracy with smart attempts).
Important Chapters for NDA Mathematics Preparation
Here’s a priority list of chapters based on their weightage and frequency in NDA papers:
1. Algebra
Quadratic equations, arithmetic & geometric progressions.
Sets, relations, and functions.
Complex numbers & linear equations.
✅ Shortcut: Remember quadratic identities and use factorization tricks.
2. Trigonometry
Trigonometric identities & equations.
Heights and distances.
Inverse trigonometric functions.
✅ Shortcut: Convert all trig functions into sin & cos form for easier solving.
3. Matrices and Determinants
Matrix operations, inverse, adjoint.
Solving simultaneous equations.
✅ Shortcut: For 2×2 determinant, use ad – bc method. For 3×3, apply diagonal method.
4. Analytical Geometry (2D & 3D)
Straight lines, circles, parabola, ellipse, hyperbola.
Distance, slope, mid-point, equation of line.
3D: Distance between two points, direction cosines.
✅ Shortcut: Use slope formula m=y2−y1x2−x1m = \frac{y_2 – y_1}{x_2 – x_1}m=x2−x1y2−y1 to save time.
5. Differential Calculus
Limits, continuity, differentiation.
Applications: maxima, minima, tangents & normals.
✅ Shortcut: Use derivative rules directly (product rule, chain rule) instead of expanding.
6. Integral Calculus & Differential Equations
Integration as inverse of differentiation.
Basic integrals & substitution method.
Differential equations of first order.
✅ Shortcut: For standard integrals, memorize a formula sheet (∫sinx, ∫cosx, ∫e^x, etc.).
7. Vector Algebra
Dot product & cross product.
Applications in geometry.
✅ Shortcut: Cross product result is always perpendicular to both vectors.
8. Statistics & Probability
Mean, median, mode, standard deviation.
Basic probability rules, conditional probability.
✅ Shortcut: Use complement rule: P(A)=1−P(A′)P(A) = 1 – P(A’)P(A)=1−P(A′).
Shortcuts & Tricks to Save Time in NDA Maths
Memorize Formulas & Identities
Keep a formula notebook handy for last-minute revision.
Skip Lengthy Questions First
Solve easy questions quickly, then attempt moderate ones, leave tricky ones last.
Use Approximation & Elimination
In MCQs, eliminate wrong options quickly by substituting values.
Work with Speed + Accuracy
Use mental maths tricks for squares, cubes, and tables up to 25.
Time Management Rule – 3 Rounds
Round 1: Attempt sure-shot easy questions.
Round 2: Attempt medium difficulty questions.
Round 3: Attempt tough questions only if time permits.
3-Month NDA Mathematics Study Plan
Month 1 – Foundation
Revise NCERT Class 11 & 12 Maths basics.
Focus on Algebra, Trigonometry, Geometry.
Month 2 – Practice
Solve topic-wise PYQs (Previous Year Questions).
Start sectional tests weekly.
Month 3 – Exam Simulation
Take full-length NDA mock tests (at least 10 before exam).
Revise formulas, notes, and weak topics.
Why Choose Victor Growth Coaching for NDA-I 2026 Mathematics?
At Victor Growth Coaching, we make NDA Mathematics preparation simpler and more effective:
Expert Faculty with Defence coaching experience.
Topic-wise Classes covering all NDA Maths chapters in detail.
Shortcut Methods taught for faster problem solving.
Exclusive Test Series matching UPSC’s difficulty level.
Doubt-clearing Sessions for personal mentorship.
Printed Study Materials with formula sheets & practice sets.
Affordable Fee Structure so every aspirant can access quality coaching.
👉 With Victor Growth, you not only master Mathematics but also gain confidence for the entire NDA exam.
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FAQs on NDA-I 2026 Mathematics Preparation
Q1. Which are the most important chapters for NDA Maths 2026?
Algebra, Trigonometry, Calculus, Geometry, Matrices, and Probability are the highest-weightage topics.
Q2. Can I clear NDA Maths without coaching?
Self-study with NCERT + PYQs helps, but coaching provides shortcuts, speed strategies, and mock practice.
Q3. How many marks are needed to clear NDA Maths cut-off?
Around 120+ marks (40% approx.) is a safe score to qualify.
Q4. Are NCERT books enough for NDA Maths?
Yes, NCERT is the base. But practice from additional books and test series is necessary.
Q5. Does Victor Growth provide NDA Maths-specific classes?
Yes. Victor Growth conducts dedicated NDA Maths sessions, shortcut workshops, and test series.
Q6. How to manage time in NDA Maths exam?
Solve easy questions first, skip lengthy ones, and manage in 3 rounds of attempt.
Q7. How many mock tests should I attempt before NDA-I 2026?
At least 10–15 full-length tests along with sectional practice.