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  • Last Modified 06-03-2023

IISER Exam Pattern 2023: Check Marking Scheme, Syllabus


IISER Exam Pattern 2023: The Indian Institutes of Science Education and Research (IISER) sets the exam pattern for the IISER Admission Test. Candidates planning to appear for the exam should go through the IISER exam pattern and syllabus before starting their preparation. They can check the detailed paper pattern from the official notification of IISER or directly from this page.

SubjectsPractice Unlimited IISER Aptitude Questions
PhysicsPractice Physics Questions
ChemistryPractice Chemistry Questions
BiologyPractice Biology Questions
MathematicsPractice Mathematics Questions

*Steps to attempt unlimited IISER Aptitude practice tests are mentioned below in this article.

By going through the latest pattern, applicants can understand the marking scheme, exam mode, and important topics for IISER Exam 2023. The IAT 2023 question paper will consist of 4 sections i.e., Physics, Chemistry, Mathematics, and Biology. Read this article to have complete details on IISER 2023 syllabus and paper pattern.

IISER Exam Pattern 2023: Overview

The IISER prescribes the paper pattern of the IISER Aptitude Test on its official website. Candidates must check the below table to get an overview of the test paper:

Mode of Exam Online (Computer-based Test)
Types of QuestionsObjective 
Total Number of Questions 60 
Total Marks180
Medium English 
Duration 3 Hours 
Section4 Sections
– Physics
– Chemistry
– Mathematics
– Biology

IISER Exam Pattern 2023

The exam pattern will guide the candidate with the type of questions, mode of exam, number of questions, total marks, sections, and duration. Aspirants will be given 3 hours to attempt a total of 60 objective questions. The examination will be conducted online. The medium of instruction will be English.

Check the section-wise exam pattern below:

SectionsNumber of Questions per SectionMarks per Section 
Physics 1545
Chemistry 1545
Mathematics 1545
Biology 1545
Total 60180

IISER 2023 Marking Scheme 

The IISER admission test score will be calculated per the marking scheme specified in the IISER exam pattern. Candidates can check the marking pattern of the entrance exam below:

Correct +3 
Incorrect -1
Questions Not Answered 0

How To Practice Questions on IISER Aptitude Test?

Know the steps to practice questions on IISER 2023 aptitude test below:

  • 1st Step: Visit Embibe’s official website, i.e., embibe.com.
  • 2nd Step: Use the mobile number/email to log in.
  • 3rd Step: Click on the menu bar “Getting into my dream undergraduate college.” 
  • 4th Step: Select the Goal “Talent and Scholarship Tests” from the Dropdown and click on “Next”.
  • 5th Step: Select “IISER Aptitude” and click on “Next”.
  • 6th Step: Select the preferred language and click on “Done”.
  • 7th Step: Click “Practice” from the Header Section.
  • 8th Step: Scroll down to the “Practice Chapters From IISER Aptitude” section.
  • 9th Step: Click on any of the free IISER chapters to begin the practice.

IISER Syllabus 2023

The IISER Aptitude Test syllabus includes topics from Physics, Chemistry, Mathematics, and Biology. Candidates must go through the syllabus while preparing for the exam and ensure that they have covered it before the exam. Check the complete subject-wise syllabus of the IISER 2023 exam below:

IISER 2023 Syllabus for Physics

Candidates can find the IISER Physics syllabus in the table below.

Physical World and MeasurementCurrent Electricity
KinematicsMagnetic Effect of Current and Magnetism
Laws of MotionElectromagnetic Induction
Work, Energy, and PowerAlternating Current
Motion of Systems of Particles and Rigid bodyElectromagnetic Waves
Properties of Bulk MatterDual Nature of Radiation and Matter
Behaviour of Perfect Gas and Kinetic EnergyNuclei
OscillationsElectronic Devices
WavesCommunication Systems

IISER 2023 Syllabus for Chemistry

Aspirants can find the IISER Chemistry syllabus in the table below.

Basic Concept of ChemistryThe p-block ElementsThe p-block elements
Structure of AtomOrganic Chemistry – Some Basic Principles and TechniquesThe d- & f-block elements
Classification of Elements and Periodicity in PropertiesHydrocarbonsCoordination Compounds
Chemical Bonding and Molecular StructureEnvironmental ChemistryHaloalkanes and Haloarenes
States of MatterSolid StateAlcohols, phenols, and Ethers
ThermodynamicsSolutionsAldehydes, Ketones, and Carboxylic Acids
EquilibriumElectrochemistryOrganic Compounds Containing Nitrogens
Redox ReactionsChemical KineticsBiomolecules
HydrogenSurface ChemistryPolymers
The s-block ElementsGeneral Principles and Processes of Isolation of ElementsChemistry in Everyday Life

IISER 2023 Syllabus for Mathematics

Candidates can find the IISER Mathematics syllabus in the table below.

SetsStraight LinesApplication of Derivatives
Relations and FunctionsConic SectionsIntegrals
Trigonometric FunctionsIntroduction to Three-Dimensional GeometryApplications of Integrals
Inverse Trigonometric FunctionsLimits and DerivativesDifferential Equations
Principle of Mathematical InductionMathematical ReasoningVectors
Complex Numbers and Quadratic EquationsStatisticsThree-dimensional Geometry
Linear InequalitiesProbabilityLinear Programming
Permutations and CombinationsMatricesSequences and Series
Binomial TheoremDeterminantsContinuity and Differentiability

IISER 2023 Syllabus for Biology

Candidates can find the IISER Biology syllabus in the table below. 

Diversity in the Living WorldReproduction
Structural Organization in Animals and PlantsGenetics and Evolution
Cell Structure and FunctionBiology and Human Welfare
Plant PhysiologyBiotechnology and Its Application
Human PhysiologyEcology and Environment

IISER 2023 Preparation Books 

The books available for the competitive exam of BS and BS-MS Dual helps the candidate to understand complex topics easily. Find below some of the best preparation books available for the IISER entrance exam


  • Pradeep’s Objective Biology
  • Dinesh Objective Biology
  • Class 12 NCERT textbook of Biology


  • Problems in Physical Chemistry by Narendra Awasthi 
  • Advanced Problems in Organic Chemistry by M.S Chouhan
  • Class 12 chemistry NCERT Textbook


  • Mathematics for class 12 by R.D Sharma
  • Elementary Mathematics by Dorofeev 
  • A Problem Book in Mathematic Analysis by GN Berman 


  • Dinesh Objective Physics 
  • Problems in General Physics by I.E Irodov
  • Concepts of Physics by HC Verma

Related Links –

IISER Application FormIISER Admit Card
IISER SyllabusIISER Eligibility

FAQs on IISER 2023 Exam Pattern

Here are some commonly answered questions on the IISER paper pattern:

Q: Who will conduct the IISER 2023 exam?

Ans: The IISER 2023 exam will be administered by the Indian Institutes of Science Education and Research.

Q: What format is the IISER Entrance Exam in?

Ans: The format of the IISER exam is Multiple Choice Questions (MCQs).

Q: Is the IISER entrance exam a paper-and-pencil test?

Ans: No. The IISER entrance exam will be administered online, using a Computer-based Test (CBT).

Q: What will be the duration of the IISER 2023 exam?

Ans: The duration of the IISER 2023 entrance test is 180 minutes (3 hours).

Q: In what language will the IISER Entrance Exam be held?

Ans: The IISER Entrance Exam will be administered in English.

We have now provided you with all the details on IISER 2023 Paper Pattern. Candidates must now focus on preparation. If you have any questions, feel free to post them in the comment section below. We will get back to you at the earliest.

Stay tuned to Embibe to get the latest news and updates on IISER Admission 2023!

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