NDA I 2026 Online Form

NDA I 2026 Online Form is now open for candidates aspiring to join the Army, Navy and Air Force through the National Defence Academy and Naval Academy. This page provides NDA 2026 notification details, important dates, eligibility, vacancies, syllabus, exam pattern, and application process for UPSC NDA Exam 2026.

Important Dates

The following dates are announced in the NDA 2026 Notification for the NDA I 2026 Online Form:

Eligibility Criteria

Candidates applying for NDA I 2026 Online Form must meet the following eligibility requirements:

Nationality

A candidate must be a citizen of India, or a subject of Nepal or Bhutan, or a Tibetan refugee who arrived before 1 January 1962 with the intention of permanent settlement.

Educational Qualification

Age Limit

Candidates must be unmarried and fall within the age range specified for NDA Exam 2026. The candidate must fulfil the age conditions applicable for NDA I Examination.

Physical Standards

Candidates must meet required physical fitness standards including height, vision, and medical conditions as per defence guidelines.

Vacancy Details

The NDA I 2026 Online Form includes the following vacancy distribution across Army, Navy, Air Force and Naval Academy.

Application Fee

Candidates must pay an application fee of Rs. 100. SC/ST candidates, female candidates and wards of specific defence personnel are exempted from fee payment. Payment can be made through UPI, Credit/Debit Card, Net Banking or any other approved method.

Scheme Of Examination

The NDA Exam Pattern 2026 includes a written examination followed by SSB Interview.

The question papers of Mathematics and General Ability Test will be objective type and will be set bilingually in Hindi and English. Calculators and logarithmic tables are not allowed.

Centres Of Examination

The NDA I 2026 Exam will be conducted at the following centres:

NDA I 2026 Syllabus

The written examination for NDA & NA (I) 2026 consists of two papers: Mathematics and General Ability Test. The complete and detailed syllabus for both papers is provided below.

Paper I – Mathematics (Maximum Marks: 300)

Algebra

Concept of set, operations on sets, Venn diagrams, De Morgan’s laws, Cartesian product, relation, equivalence relation. Real numbers and their representation on a line. Complex numbers—basic properties, modulus, argument, cube roots of unity. Conversion of a number in the decimal system to the binary system and vice-versa.

Arithmetic, geometric and harmonic progressions. Quadratic equations with real coefficients. Solutions of linear inequations of two variables by graphs. Permutation and combination, binomial theorem and its applications. Logarithms and their applications.

Matrices and Determinants

Types of matrices, operations on matrices. Determinants, basic properties of determinants. Adjoint and inverse of a square matrix. Applications of determinants and matrices in solving a system of linear equations in two or three unknowns.

Trigonometry

Angles and their measures in degrees and radians. Trigonometric ratios, trigonometric identities. Sum and difference formulae. Multiple and sub-multiple angles. Inverse trigonometric functions. Applications of trigonometry, including height and distance problems.

Analytical Geometry of Two Dimensions

Rectangular Cartesian coordinate system, distance formula. Equation of a line in various forms, angle between two lines, distance of a point from a line. Equation of a circle in standard and general form. Standard forms of parabola, ellipse and hyperbola. Eccentricity and axis of a conic.

Analytical Geometry of Three Dimensions

Point location in three-dimensional space. Distance between two points. Direction cosines and direction ratios. Equation of a plane and a line in space. Angle between two lines, angle between a line and a plane. Equation of a sphere.

Differential Calculus

Concept of a real-valued function, domain, range, graph of a function. Composite functions, one-to-one, onto and inverse functions. Limit and continuity of a function. Standard limit theorems. Derivative of a function, geometrical and physical meaning of derivative.

Rules of differentiation: sum, product and quotient of functions; derivatives of trigonometric, inverse trigonometric, exponential and logarithmic functions. Derivative of a function with respect to another function. Derivatives of composite functions.

Second-order derivatives. Increasing and decreasing functions. Maxima and minima of functions of one variable. Applications of derivatives.

Integral Calculus and Differential Equations

Integration as inverse of differentiation. Methods of integration: substitution, partial fractions, integration by parts. Definite integrals and their properties. Evaluation of definite integrals. Applications of integrals: area under curves.

Differential equations: order and degree, formation of differential equations. General and particular solutions. Solution of first-order and first-degree differential equations using standard methods.

Vector Algebra

Vectors in two and three dimensions. Magnitude and direction of a vector. Unit vectors, null vector. Addition of vectors, scalar multiplication. Scalar product and vector product of two vectors. Applications of vectors: work done, moment of a force.

Statistics and Probability

Statistics: classification of data, frequency distribution, cumulative frequency. Graphical representation: histogram, frequency polygon, pie chart. Measures of central tendency: mean, median and mode. Variance and standard deviation. Correlation and regression analysis.

Probability: random experiments, sample space, events, mutually exclusive and exhaustive events. Elementary and composite events. Classical and statistical definition of probability. Simple probability problems. Binomial probability distribution. Bayes’ theorem.

Paper II – General Ability Test (Maximum Marks: 600)

This paper consists of two sections: English (200 marks) and General Knowledge (400 marks). The detailed syllabus is presented below.

Part A – English

The question paper is designed to test the candidate’s understanding of English language and its correct usage. The syllabus covers:

• Grammar and vocabulary
• Comprehension passages
• Spotting errors
• Sentence structure and usage
• Synonyms and antonyms
• Para jumbles
• Idioms and phrases
• Ability to convey meaning effectively

Part B – General Knowledge

The General Knowledge section broadly covers the subjects outlined below. Each section may include questions testing basic understanding, application-based knowledge and awareness of current developments.

Section A – Physics

Physical properties and states of matter. Mass, weight, volume, density and specific gravity. Principle of Archimedes. Pressure and barometer. Motion of objects—velocity and acceleration, Newton’s laws of motion, resultant forces, momentum.

Work, energy and power. Types of energy. Heat—temperature, measurement, sources and effects of heat. Change of state, latent heat, modes of heat transfer (conduction, convection and radiation).

Sound waves—speed, frequency and pitch. Reflection and refraction of light, lenses and mirrors, magnification, human eye and defects of vision. Heat engines.

Electricity: conductors and insulators, Ohm’s law, simple circuits, heating effects, electrical power, household wiring, safety fuses.

Magnetism: natural and artificial magnets, magnetic field, earth’s magnetism. Simple machines: pulley, lever, screw jack, lifts.

Simple devices: siphon, pump, hydrometer, manometer, barometer, ammeter, voltmeter, galvanometer, microscope, telescope.

Section B – Chemistry

Physical and chemical changes. Elements, mixtures and compounds. Symbols, formulas and simple chemical equations. Law of chemical combination. Properties of air and water.

Preparation and properties of oxygen, hydrogen, nitrogen and carbon dioxide. Acid, base and salt concepts. Oxidation and reduction. Properties of metals and non-metals.

Fuels: natural and artificial. Carbon and its compounds. Fertilizers—types and uses. Chemical industries: glass, soap, paper, ink, cement, dyes and explosives.

Structure of atom: protons, electrons, neutrons, valency, molecular mass and atomic mass.

Section C – General Science

Living and non-living things. Basic biology: cell structure, protoplasm, tissues. Plant and animal kingdoms. Human body systems—digestive, circulatory, respiratory, nervous, reproductive.

Growth and reproduction in plants and animals. Balanced diet, nutrients and energy. Common communicable diseases and methods of prevention.

Solar system: planets, meteors, comets, eclipses. Environmental science: pollution, conservation, ecosystems.

Section D – History, Freedom Movement and Civics

A broad survey of ancient, medieval and modern Indian history. Cultural developments and heritage. National freedom movement—important leaders, events, contributions and ideologies.

Constitution of India—basic structure, fundamental rights and duties, directive principles, union and state governments, Panchayati Raj, public administration.

Impact of foreign rule, social reforms, renaissance in India. Major world events: French Revolution, Industrial Revolution, World Wars.

Section E – Geography

Earth: shape, size and structure. Latitudes and longitudes. Time zones and International Date Line. Interior of the Earth: rocks, earthquakes, volcanoes.

Atmosphere: composition, layers, temperature, pressure belts, winds, humidity and rainfall. Climate and weather patterns. Cyclones and monsoons.

Oceans: salinity, tides, currents. Continents and geographical features. Natural resources: soils, minerals, forests, rivers and water systems.

Economic geography of India: agriculture, industries, transportation, trade, imports and exports.

Section F – Current Events

Knowledge of significant national and international events. Major developments in defence, sports, culture, science and technology, environment, politics and economy.

Candidates are expected to be aware of prominent personalities and important developments in recent years.

How To Apply Online

Follow the steps below to complete the NDA I 2026 Online Form:

1. Visit the UPSC Online Portal: https://upsconline.nic.in
2. Register using the required details and generate your registration number.
3. Fill the NDA I 2026 application form with accurate personal and educational information.
4. Upload photograph, signature and required documents.
5. Pay the application fee online (if applicable).
6. Submit the form and download the confirmation page.

FAQ

How do I apply for NDA I 2026 Online Form?

You can apply online at https://upsconline.nic.in by completing registration, filling the form and uploading documents.

What is the last date for NDA I 2026 Registration?

The last date to apply is 30 December 2025.

What is the minimum educational qualification?

12th pass is required. For Air Force and Navy wings, Physics and Mathematics are mandatory.

Is there negative marking in NDA Exam?

Yes, objective questions include negative marking.

What is the selection process?

Written Examination followed by SSB Interview and Medical Examination.

What is the NDA exam pattern?

Mathematics (300 marks) and General Ability Test (600 marks), total 900 marks.