IIT JAM 2027 Important Topics: Subject-Wise Weightage, Priority & Previous Year Papers

Mathematics Topic

Important Subtopics for IIT JAM 2027

% of Questions in 2026

Priority for 2027

Real Analysis

Real numbers, sequences, continuity, differentiability, convergence

21%

Very High

Differential & Integral Calculus

Limits, continuity, differentiation, integration, applications

18%

Very High

Linear Algebra

Matrices, determinants, rank, eigenvalues, eigenvectors

14%

Very High

Calculus of Two Variables

Partial derivatives, extrema, multiple integrals, optimization

14%

High

Vector Calculus

Vector functions, gradient, divergence, curl

12%

High

Differential Equations

First-order and higher-order differential equations

11%

High

Abstract Algebra

Groups, subgroups, cyclic groups, homomorphisms, and permutations

10%

High

Physics Topic

Important Subtopics for IIT JAM 2027

% of Questions in 2026

Priority for 2027

Modern Physics

Quantum concepts, relativity, atomic and nuclear physics

10%

Very High

Mechanics & General Properties of Matter

Laws of motion, rotational motion, gravitation, elasticity, and fluids

8%

Very High

Solid State Physics & Electronics

Crystal structure, semiconductors, diodes, transistors, and devices

8–10%

Very High

Electricity & Magnetism

Electrostatics, magnetic fields, electromagnetic induction, and circuits

5–7%

High

Oscillations, Waves & Optics

SHM, waves, interference, diffraction, and polarization

6–8%

High

Mathematical Physics

Vector calculus, differential equations, and mathematical methods

2–4%

High

Thermodynamics & Kinetic Theory

Laws of thermodynamics, entropy, kinetic theory, and distributions

High emphasis

Very High

Chemistry Topic

Important Subtopics for IIT JAM 2027

% of Questions in 2026

Priority for 2027

Physical Chemistry

Thermodynamics, equilibrium, kinetics, electrochemistry, spectroscopy

35–37%

Very High

Organic Chemistry

Basic concepts, stereochemistry, reaction mechanisms, and synthesis

32–34%

Very High

Inorganic Chemistry

Chemical bonding, coordination chemistry, periodic properties, d- and p-block elements

29–31%

Very High

Chemical Thermodynamics

Enthalpy, entropy, Gibbs energy, and spontaneity

High emphasis

Very High

Chemical Equilibrium

Ionic equilibrium, chemical equilibrium, and phase equilibrium

High emphasis

Very High

Chemical Kinetics

Rate laws, reaction order, Arrhenius equation, and mechanisms

High emphasis

Very High

Stereochemistry

Chirality, optical isomerism, configurations, and conformations

High emphasis

Very High

Reaction Mechanisms

SN1, SN2, E1, E2, electrophilic and nucleophilic reactions

High emphasis

Very High

Coordination Chemistry

CFT, coordination compounds, isomerism, and magnetic properties

High emphasis

Very High

Biotechnology Topic

Important Subtopics for IIT JAM 2027

% of Questions in 2026

Priority for 2027

Biology/Biotechnology

Cell Biology, Molecular Biology, Genetics, Biochemistry, Microbiology

44%

Very High

Chemistry

Organic, inorganic, and physical chemistry fundamentals

20%

High

Mathematics

Calculus, algebra, probability, statistics, and mathematical methods

18%

High

Physics

Mechanics, thermodynamics, electricity, optics, and modern physics

18%

High

Molecular Biology

DNA replication, transcription, translation, and gene regulation

Major topic in 2026

Very High

Biochemistry

Enzymes, metabolism, proteins, carbohydrates, and bioenergetics

Major topic in 2026

Very High

Genetics

Mendelian genetics, linkage, recombination, and mutations

Important in 2026

Very High

Microbiology

Microbial growth, metabolism, genetics, and microorganisms

Important in 2026

High

Biotechnology Techniques

PCR, cloning, sequencing, electrophoresis, and recombinant DNA

Important application area

Very High

Economics Topic

Important Subtopics for IIT JAM 2027

% of Questions in 2026

Priority for 2027

Microeconomics

Demand, supply, elasticity, consumer and producer theory

High emphasis

Very High

Consumer Theory

Utility, indifference curves, budget constraints, and consumer choice

High emphasis

Very High

Macroeconomics

National income, inflation, unemployment, and economic growth

High emphasis

Very High

IS-LM Model

Goods market, money market, equilibrium income, and interest rate

High emphasis

Very High

Money and Banking

Money supply, liquidity preference, banking, and monetary policy

High emphasis

Very High

Statistics

Probability, distributions, mean, variance, correlation, and regression

Important

High

Econometrics

Regression, estimation, and hypothesis testing

Important

High

Indian Economy

Economic reforms, poverty, unemployment, agriculture, and development

Important

High

International Economics

Trade, comparative advantage, exchange rates, and balance of payments

Moderate emphasis

High

Mathematical Methods

Functions, differentiation, integration, and optimisation

Moderate emphasis

High

Geology Topic

Important Subtopics for IIT JAM 2027

% of Questions in 2026

Priority for 2027

Petrology

Igneous, metamorphic, and sedimentary rocks, textures, and classification

~20–25%*

Very High

Mineralogy & Crystallography

Mineral properties, crystal systems, symmetry, and silicates

~15–20%*

Very High

Structural Geology

Folds, faults, joints, stress, strain, and geological maps

~15–18%*

Very High

Planet Earth & Plate Tectonics

Earth structure, continental drift, plate boundaries, and volcanism

~15–19%*

Very High

Palaeontology & Stratigraphy

Fossils, geological time scale, and stratigraphic correlation

~10–15%*

High

Geomorphology & Sedimentology

Weathering, erosion, rivers, glaciers, and sediments

~10–12%*

High

Economic Geology

Ore deposits, mineral resources, and exploration

~8–10%*

High

Mathematical Statistics Topic

Important Subtopics for IIT JAM 2027

Priority

Probability Theory

Sample space, events, conditional probability, Bayes' theorem, independence

Very High

Random Variables

Discrete and continuous random variables, probability distributions, distribution functions

Very High

Probability Distributions

Binomial, Poisson, geometric, negative binomial, uniform, normal, and exponential distributions

Very High

Expectation and Moments

Mathematical expectation, variance, covariance, moments, moment-generating functions

Very High

Joint Distributions

Joint, marginal, and conditional distributions, independence, covariance, and correlation

High

Sampling Theory

Population and sample, random sampling, sampling distributions, standard error

High

Estimation Theory

Point estimation, unbiased estimators, consistency, efficiency, sufficient statistics

Very High

Methods of Estimation

Method of moments, maximum likelihood estimation, and properties of estimators

Very High

Hypothesis Testing

Null and alternative hypotheses, Type I and Type II errors, critical region, p-value

Very High

Tests of Significance

Large-sample tests, small-sample tests, tests for means, proportions, and variances

Very High

Correlation and Regression

Correlation coefficient, regression lines, least squares method, and regression coefficients

High

Descriptive Statistics

Mean, median, mode, variance, standard deviation, moments, skewness, and kurtosis

High

Limit Theorems

Law of large numbers, central limit theorem, and convergence concepts

High

Statistical Inference

Confidence intervals, estimation, hypothesis testing, and sampling distributions

Very High

Order Statistics

Distribution of order statistics, sample maximum, minimum, and median

Medium-High

Markov and Chebyshev Inequalities

Markov inequality, Chebyshev inequality, and applications

Medium-High

Discrete Mathematics

Sets, functions, counting principles, permutations, and combinations

High

Calculus for Statistics

Limits, continuity, differentiation, integration, maxima, and minima

Very High

Subject

Important Areas to Focus On

Priority

Mathematics

Calculus, Linear Algebra, Group Theory, Differential Equations, Sequences and Series

Very High

Physics

Mechanics, Electromagnetism, Quantum Mechanics, Thermodynamics, Mathematical Methods

Very High

Chemistry

Organic Chemistry, Physical Chemistry, Inorganic Chemistry, Chemical Bonding, Thermodynamics

Very High

Biotechnology

Cell Biology, Molecular Biology, Genetics, Biochemistry, Biotechnology Techniques

Very High

Economics

Microeconomics, Macroeconomics, Statistics, Mathematical Methods, Indian Economy

Very High

Geology

Mineralogy, Petrology, Structural Geology, Stratigraphy, Economic Geology

Very High

Mathematical Statistics

Probability, Random Variables, Distributions, Estimation, Hypothesis Testing

Very High