IISER Entrance Exam 2026 will consist of 15 questions from the IAT 2026 Mathematics syllabus. Candidates preparing for the IISER exam 2026 must go through the Mathematics syllabus specified by the exam officials. Read this Shiksha article to learn about the IISER entrance exam 2026 Mathematics syllabus of class 11 and 12 NCERT books. Also, check out the weightage of Mathematics questions asked in the exam.
IISER Berhampur has released the IAT 2026 syllabus online. Students can check the IISER 2026 Mathematics syllabus on this page. The topics covered in IAT Mathematics syllabus are based on Class 11 & 12 topics. Students can check the syllabus to know the what topics to prepare for IISER Aptitude Test. Students can focus on high weightage topics to score higher marks in IISER entrance test 2026. There will be 15 questions based on Mathematics in the entrance test.
Students can check IAT syllabus 2026 to know the syllabus for Physics, Chemistry and Biology. Practice the IISER 2026 mock test to get familiar with online exam navigation and managing time. Students must solve IISER PYQs for self-assessment and to improve weaker sections. They will also be able to identify high-weightage topics.
- IISER Aptitude Test Mathematics Syllabus 2026
- IISER Entrance Exam 2026: Subject Weightage
- Best IISER Aptitude Test Books for Mathematics
IISER Aptitude Test Mathematics Syllabus 2026
By mastering the IAT mathematics syllabus, candidates not only enhance their chances of securing a place in IISER participating institutes but also equip themselves with the mathematical tools essential for a successful scientific career. Success in this section demands not just rote memorisation of formulas but a deep understanding of underlying principles and the ability to apply them creatively.
Check out the IAT 2026 Mathematics syllabus of class 11 & 12 NCERT of Mathematics domain from here:
Sets and Logic
Set: Representing sets in different ways. Subsets. Different types of sets e.g. universal set, finite or infinite sets, intervals in real line. Various operations on sets. Properties of various operations on sets. Venn diagram. Ordered pairs. Cartesian products.
Relations & functions: Type of relations. Equivalence relation. Functions. Types of functions. Composition of functions, inverse of a function. Real valued functions: algebraic operations of real valued functions, different types of real valued functions (e.g. polynomial, rational, modules, signum, etc), graphical representation of real valued functions.
Basic counting techniques
Permutations and Combinations: Fundamental principles of counting. Factorial n. Permutations and combinations- derivation of formulae and their connections. Applications.
Binomial Theorem: Binomial theorem for positive integral indices. Pascal’s triangle. General and middle term in binomial expansion. Applications.
Complex numbers, linear and quadratic equations
Complex Numbers: Motivation for complex numbers. Representation of complex numbers in the plane as a pair of real numbers and their representation of the form a+ib. Polar representation and the Argand plane. Algebra of complex numbers. Modulus and conjugate of a complex number. Statement of the Fundamental Theorem of Algebra.
Quadratic Equations: Quadratic equations and their solutions. Relation between roots and the coefficients of quadratic equations.
Linear Inequalities: Inequalities, Algebraic solution of linear inequalities in one variable and their graphical representation.
Trigonometric functions
Measures of angles and their conversions. Trigonometric functions, identities, and their geometric interpretations. Applications of trigonometric equations. Inverse trigonometric functions and properties. Graphs of trigonometric functions.
Also Read: IISER Aptitude Test Physics Syllabus 2026: Check Topic Wise Complete Syllabus Here
Vectors
Vectors and scalars: Magnitude and direction of a vector. Direction cosines/ ratios. Types of vectors. Position vector. Negative and components of a vector. Addition of vectors. Multiplication of a vector by a scalar. Position vector of a point dividing a line segment in the given ratio. Dot and cross products of vectors. Projection of a vector on another vector/ line.
Matrices & determinants
Matrices: Concept, notation, order, equality, transpose of a matrix, types of matrices, simple properties of addition, multiplication, scalar multiplication, and multiplication of matrices. Concept of elementary row and column operations. Invertible matrices and proof of the uniqueness of inverse, if it exists. Applications of matrices.
Determinants: Determinant of a square matrix (up to 3 X 3 matrices), properties of determinants, minors, cofactors, and applications of determinants in finding the area of a triangle. Adjoint and inverse of a square matrix. Applications of determinants.
Coordinate geometry
Cartesian system of rectangular coordinates in a plane. Shifting of origin.
Straight Lines: Slope of a line and angle between two lines. Various forms of equations of a line. General equation of a line. Distance of a point from a line.
Conic Sections: Sections of a cone: Circles, ellipse, parabola, hyperbola, a point, a straight line, and a pair of intersecting lines as a degenerated case of a conic section. Standard equations and simple properties of parabola, ellipse, and hyperbola. Standard equation of a circle, the general form of the equation of a circle.
Three-dimensional geometry
Coordinate axes and planes. Distance between points. Section formula. Direction cosines and direction ratios of a line. Various forms of the equation of a line. Angle between two lines and two planes. Shortest distance between two lines in three-dimensional space. Coplanar andskew line. Cartesian and vector equation of a plane. Distance of a point from a plane.
Also Read: IISER Aptitude Test 2026 Chemistry Syllabus
Sequences & series
Arithmetic and Geometric progressions. Sums of finite and infinite geometric series. Sums of finite terms in arithmetic series. Arithmetic mean (A.M.) and geometric mean (G.M.). Relation between A.M and G.M. Sums of first n-terms of the special series, for example, ∑ n, ∑ n^2 and ∑ n^3.
Limit & continuity
Limits. Continuity. Algebraic properties of limits. Algebraic properties of continuous functions. Limits and continuity of real valued functions, polynomials, rational functions, trigonometric
functions, exponential functions, and inverse functions.
Differentiation
Differentiation: Definition of derivative and relating it to slope of tangent of the curve. Derivative of sum, difference, product, and quotient of functions. Derivative of some standard functione.g. polynomial, trigonometric, inverse trigonometric, exponential, and logarithmic functions. Derivative of composite functions via chain rule. Derivative of implicit functions and functions in parametric forms. Logarithmic derivative. Second order derivatives.
Application of Derivatives: Rate of change, increasing/decreasing functions, tangents and normals maxima and minima.
Integration
Integration: Integration as inverse process of differentiation. Integrals involving algebraic, trigonometric, exponential, and logarithmic functions. Integration of a variety of functions by
substitution, by partial fractions, by parts and using trigonometric identities. Evaluation of integrals of some standard types. Fundamental theorem of calculus. Basic properties and evaluation of definite integrals.
Applications of Integration: Finding the area of region under simple curves. Finding the area of the region between two simple curves.
Differential equations
Definition, order, degree. Formation of a differential equation. Solution by separation of variables. Homogeneous differential equation of first order and degree. Solution of the equations dy/dx +P y=Q where P and Q are functions of x or constant and similarly for dx/dy +P x=Q where P and Q are functions of y or constant.
Statistics, Probability & Linear Programming
Statistics: Measure of dispersion; mean deviation, variance, and standard deviation of ungrouped/grouped data.
Probability: Random experiments: outcomes, sample spaces (set representation).
Events: Occurrence of events, ‘not’, ‘and’ & ‘or’ events, exhaustive events, mutually exclusive events. Axiomatic (set theoretic) probability. Probability of an event, probability of ‘not’, ‘and’, & ‘or’ events. Multiplication theorem on probability. Conditional probability, independent events, total probability, Baye’s theorem.
Also Read: IISER Biology Syllabus 2026: Check Class 11 and Class 12 NCERT Biology Syllabus Here
Commonly asked questions
The IISER Entrance Exam syllabus is in tune with the Class 11 and 12 Board exam syllabus. The questions in the examination are asked from four domains of the Science subject, which are Mathematics, Biology, Chemistry, and Physics.
As per the syllabus mentioned in the information brochure of IISER, it is observed that in the Biology subject maximum syllabus is covered from the Class 12 book. For the subjects of Physics, Mathematics and Chemistry, the syllabus is equally distributed in Class 11 and 12.
The IISER entrance exam Chemistry syllabus is given below.
- Structure of Atom
- Classification of elements and periodicity in properties
- Chemical bonding and molecular structure
- States of matter
- Thermodynamics
- Equilibrium
- Redox reactions
- Hydrogen
- The s-block Elements
- The p-Block Elements
- Organic Chemistry
- Hydrocarbons
- Environmental Chemistry
- The solid state
- Solutions
- Electrochemistry
- Chemical Kinetics
- Surface Chemistry
- General principles and processes of the isolation of elements
- The d and f block elements
- Coordination compounds
- Haloalkanes and haloarenes
- Alcohols, phenols and ether
- Aldehydes
- Ketones and carboxylic acids
- Organic compounds containing nitrogen, biomolecules and polymers
- Chemistry in everyday life.
IISER entrance examination provides admission to candidates in the five-year-long BSMS dual degree programme offered by them. On the basis of a candidates score in the IISER Entrance Exam (also known as IISER aptitude test), he/she can secure admission at IISER located in Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, or Tirupati. Since it is an undergraduate degree, the syllabus for the examination is confined to class 11 and 12 subjects which are Physics Chemistry Biology and mathematics. Candidates can find the complete syllabus in the information brochure of the IISER on the official website. For detailed syllabus, candidates can view the below Shiksha link- https://www.shiksha.com/science/iiser-entrance-exam-syllabus.
IISER Entrance Exam 2026: Subject Weightage
The IISER Entrance Exam Marking Scheme and subject weightage are as follows:
| Subject |
No. of Questions |
Marks |
|---|---|---|
| Physics |
15 |
60 |
| Chemistry |
15 |
60 |
| Chemistry |
15 |
60 |
| Mathematics |
15 |
60 |
| Total |
60 |
240 |
Marking scheme: Candidates will be awarded three marks for each correct answer. There will be a negative marking of one mark for each incorrect answer.
Also Read: IISER Entrance Exam 2026 Pattern: Section-wise Paper Pattern, Marking Scheme
Best IISER Aptitude Test Books for Mathematics
The most preferred books for the IISER Aptitude Test for Mathematics, along with their authors, are listed below.
| Books |
Authors |
|---|---|
| Problems Plus in IIT Mathematics |
A Das Gupta |
| Comprehensive Mathematics JEE Advanced |
Tata McGraw-Hill |
| Plane Trigonometry Part 1 |
SL Loneyx |

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Student Forum
Answered 2 weeks ago
Students can create an IISER login id and password during registration. The details required to register for IISER are Name, Date of birth, gender, citizenship status, mobile number, and email address.
V
Contributor-Level 10
Answered 2 weeks ago
No, IISER registration was over on April 13, 2026. Students were able to register for IAT 2026 from March 5 to April 13.
V
Contributor-Level 10
Answered 2 weeks ago
IAT user id is (application number / registration number). It is created during the IISER registration process. After the registration is over, user id and password are sent to the registered email address and mobile number.
V
Contributor-Level 10
Answered 2 months ago
IISER answer key will be released on June 7, 2026. Candidates can download the answer key online. The answer key challenge window will open on June 9, 2026.
V
Contributor-Level 10
Answered 2 months ago
The IISER exam date was June 7, 2026. The exam timing was from 9 AM to 12 PM. Candidates had to report to the exam centre by 7 AM.
V
Contributor-Level 10
Answered 2 months ago
IISER score 200 or above is a good marks. It can help to get admission to IISER Pune and IISc Bangalore. Candidates must have a good conceptual knowledge, give priority to all four subjects. Prepare for the exam according to the exam syllabus and take mock test to score above 200.
V
Contributor-Level 10
Answered 2 months ago
Based on previous year analysis, IAT exam is moderately difficult. It requires strong conceptual knowledge. Students who have prepared properly for exam can easily score good marks.
V
Contributor-Level 10
Answered 2 months ago
It is quite difficult for the GEN / OBC category to get admission to IISER with 50 marks. Even the reserved category students have less chance in the later counelling round for admission. To secure admission, students must score above 150 marks.
V
Contributor-Level 10
Answered 2 months ago
IISER exam is considered of moderate difficulty level. Majority of students finds Physics, and Mathematics challenging. PCM students may find biology tough while PCB students might find Mathematics tough. However, the difficulty level of IISER compared to JEE Main and Advanced is moderate to easy.
V
Contributor-Level 10
