What is the total marks of the IISER Entrance Exam?

The IISER entrance exam is of 240 marks. Each question carries four marks. There is a minus one mark for each wrong answer. No marks will be removed for questions not answered. There are 60 marks in each of the four sections. All questions are objective type and have four answer options. Students have to select one option only. Sections tested in the exam are PCMB.

What is the syllabus for Chemistry in IISER entrance examination?

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.

How many sections are asked in the IISER Entrance Exam?

IISER exam pattern is expected to remain similar to the previous year. There will be four sections in the IISER question paper, including Biology, Physics, Chemistry, and Mathematics. Each section will carry 15 multiple choice questions. Every question will carry four marks. Negative marking is done for wrong answers.

Where to find IISER entrance exam syllabus?

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.

Which was the toughest section in IISER Entrance Exam 2025?

As per the IISER Entrance Exam 2025 analysis, Physics was the toughest section. The overall difficulty level was medium to high. The topics covered were Electricity and Magnetism, Mechanics, Optics and Modern Physics. The questions were from Classes 11 and 12.

Is IISER entrance examination tougher than JEE Advanced?

IISER Aptitude Test difficulty level is comparatively easier than JEE Main exam difficulty level. There are four sections in the exam, and all have equal weightage. Mentioned below are the details for the same: Biology: This section might sound a tough nut to crack for the PCM students, but a reasonable understanding of class 11 and 12 NCERT concepts can help you sail through this section. If you are not familiar with Biology try to ace the Maths section. As the number of test-takers has grown over the years, this section has also seen a surged difficulty level. Maths: For the Biology students, it might be hard to crack. You need to focus on 11th and 12th class concepts. You can search for the doable questions and solve them. The level is usually at par or even above JEE Mains. The Biology students can cover the scores in their specialised section. Physics and Chemistry: This section is usually easier than the above two sections. The scores obtained here can make-or-break your chances for counselling. The questions in these two sections cover the fundamental and essential concepts. It is better to score well in these two sections. The sections are not really tough. They are far away from the difficulty level of JEE Advance. Overall, the exam is far from easier than JEE Advanced exam. The Biology students have the advantage to finish their section quicker. Make sure your fundamentals are clear and your reasoning ability is good. This should be enough to secure a good score.

Which books are suggested for Mathematics in IISER Entrance Examination?

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. 1. Problems Plus in IIT Mathematics by A Das Gupta 2. Comprehensive Mathematics JEE Advanced by Tata McGraw Hill 3. Plane Trigonometry Part 1 by SL Loneyx.

What are the types of questions asked in the IISER Entrance Exam?

The IISER Entrance Exam questions are objective type. These are multiple-choice questions with four options. The mode of the exam is computer-based. Test-takers have to select one option. Marks per question is four. One mark will be removed for wrong answers.

What are the factors to select the right IISER aptitude test preparation books?

Aspirants should keep in mind the following factors while selecting the right preparation books for the IISER Aptitude Test: Content of books You must refer to the reviews of the best books for IISER Aptitude Test preparation to know how easy it would be to read and understand those books. The factors in the content that should be checked include the quality of language or ease of understanding or comprehension, coverage of topics and chapters from the IISER Aptitude Test syllabus, among others. Edition Candidates should always refer to the latest edition of IISER entrance preparation books. Older editions may contain outdated content, which would not aid their preparation properly. Practice Materials While selecting the best books for the exam, you should also check whether along with chapter-wise theoretical content, the books also have sufficient practice questions along with their answer keys and solutions, or previous years solved question papers.

What are the types of questions asked in the IISER Entrance Exam?

The IISER Entrance Exam questions are objective type. These are multiple-choice questions with four options. The mode of the exam is computer-based. Test-takers have to select one option. Marks per question is four. One mark will be removed for wrong answers.

What is the level of the IISER Entrance Exam syllabus?

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.

Will there be any changes made in the IISER Entrance Exam 2027 pattern?

IISER 2026 exam pattern is out. No changes have been made in the IISER entrance exam pattern. The exam was conducted as a computer-based test for three hours. There were 4 sections in the IISER question paper. Each section carries 15 questions.

IISER Entrance Exam 2026 Books: Check Best Books for Exam Preparation

Updated on Sep 22, 2026 17:23 IST

By Vikash Kumar Vishwakarma

IISER 2026 Books: Aspirants can check the IAT book list on this page. The list of IISER books is prepared based on the exam syllabus. We have also considered the books suggested by IISER toppers. IISER entrance exam tests the conceptual knowledge of candidates. The books are the best materials for exam preparation and improving conceptual knowledge. There are many books for IISER exam preparation, but choosing the right books is important. Students must focus on the NCERT textbooks to prepare for IISER exam. IISER Berhampur conducted the IAT exam 2026 on June 7, 2026.

Table of contents

Best IISER Aptitude Test Books for Physics
Best IISER Aptitude Test Books for Chemistry
Best IISER Aptitude Test Books for Mathematics
Best IISER Aptitude Test Books for Biology
Factors to Select Right IISER Aptitude Test Preparation Books
IISER Admission Test 2026 Exam Pattern
IISER 2026 Preparation Tips
FAQs Regarding IISER Aptitude Test Books

Best IISER Aptitude Test Books for Physics

Below are the list of IISER books for Physics. Check the name and add them to your preparation.

Physics Books	Author Name
Concepts if Physics Volume I	H.C Verma
Concepts if Physics Volume II	H.C Verma
NCERT Physics Class XI	NCERT
NCERT Physics Class XII	NCERT
Fundamentals of Physics	Halliday, Resnik, Walker
Problems in General Physics	I.E Irodov

Best IISER Aptitude Test Books for Chemistry

Candidates can check the list of books for IISER Chemistry. Follow the list and add them to your preparation material.

Name of the Chemistry Books	Author name
NCERT Chemistry Class XI	NCERT
NCERT Chemistry Class XII	NCERT
Organic Chemistry	Morrison and Boyd
Inorganic Chemistry for IIT JEE	O.P Tandon
Concise Inorganic Chemistry for JEE	J.D Lee
Numerical Chemistry	P Bahadur
Chemical Calculations	R.C Mukherjee

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 for Mathematics	Author Name
Problems Plus in IIT Mathematics	A Das Gupta
Comprehensive Mathematics JEE Advanced	Tata McGraw Hill
Plane Trigonometry Part 1	SL Loneyx

Best IISER Aptitude Test Books for Biology

The best Biology books for the IISER Aptitude Test are listed in the table below.

Book for Biology Subject Preparation	Authors
Objective Biology Volume I & II	Trueman’s
Objective NCERT at Your Fingertips	MTG Editorial Board
NCERT Biology Book for Class 12	NCERT
Master The NCERT for NEET 11 & 12 Biology	Sanjay Sharma
Handbook of Biology	Arihant

Factors to Select Right IISER Aptitude Test Preparation Books

Aspirants should keep in mind the following factors while selecting the right preparation books for the IISER Aptitude Test

Content of books - You must refer to the reviews of the best books for IISER Aptitude Test preparation to know how easy it would be to read and understand those books. The factors in the content that should be checked include the quality of language or ease of understanding or comprehension, coverage of topics and chapters from the IISER Aptitude Test syllabus, among others.
Edition - Candidates should always refer to the latest edition of the IISER entrance preparation books. Older editions may contain outdated content, which would not aid their preparation properly.
Practice Materials - While selecting the best books for the exam, you should also check whether, along with chapter-wise theoretical content, the books also have sufficient practice questions along with their answer keys and solutions, or previous years’ solved question papers.

IISER Admission Test 2026 Exam Pattern

Candidates must be familiar with the IAT exam pattern. This will help you know the marking scheme, mode of exam, duration of the test, and more. Moreover, candidates can plan their preparation section-wise. There are four sections in the IISER question paper. Each section carries 15 questions. Check the table for IAT exam pattern.

Subject	No. of Questions	Marks
Physics	15	60
Chemistry	15	60
Biology	15	60
Mathematics	15	60
Total	60	240

Each question carries four marks; one mark is removed for each wrong answer. No marks will be given or removed for unattempted questions.

The syllabus of the IISER Aptitude Test is based on the Class 11 and Class 12 NCERT curriculum. Hence, the IISER Aptitude Test books for preparation should be of a higher secondary level. Moreover, NCERT books would also suffice as IISER entrance exam preparation books.

IISER 2026 Preparation Tips

Candidates must plan their IISER preparation strategy for systematic study. This will help candidates to cover the exam syllabus on time. Preparation plays an important role in securing high marks. Candidates can check IAT preparation tips below.

Know IAT exam syllabus and paper pattern.
Gather preparation resources like books, study materials, mock test, and PYQs.
Prepare a study timetable and distribute equal time to all sections.
Practice IAT mock tests and previous year question paper to get familiar with the exam difficulty level and identify the high-weightage topics
Make handy notes of important concepts and formulas.
Keep track of your performance.
Revision is a must.

FAQs Regarding IISER Aptitude Test Books

Here are some FAQs on IAT 2026 Books

Q: What will be the section wise marking scheme of IISER Entrance Exam 2027?

The IISER Entrance Exam Marking Scheme is given below.

Section	Marks
Physics	60
Mathematics	60
Chemistry	60
Biology	60

Each section carries 15 marks.

Q: Which books are suggested for Chemistry in IISER Entrance Examination?

Best IISER Aptitude Test Books for Chemistry- Here we bring the list of top books for the IISER Aptitude Test Chemistry section. 1. NCERT Chemistry Class XI 2. NCERT Chemistry Class XII 3. Organic Chemistry by Morrison and Boyd 4. Inorganic Chemistry for IIT JEE by O. P Tandon 5. Concise Inorganic Chemistry for JEE by J. D Lee 6. Numerical Chemistry by P Bahadur 7. Chemical Calculations by R. C Mukherjee.

Q: Which books are suggested for Biology in IISER Entrance Examination preparation?

Best IISER Aptitude Test Books for Biology- The best Biology books for IISER Aptitude Test are listed in the table below. 1. Objective Biology Volume I & II by Truemans 2. Objective NCERT at Your Fingertips by MTG Editorial Board 3. NCERT Biology Book for Class 12 by NCERT 4. Master The NCERT for NEET 11 & 12 Biology by Sanjay Sharma 5. Handbook of Biology by Arihant.

Q: In what mode will IISER 2026 aptitude test be conducted?

IISER is a compulsory entrance test to get into the IISER Pune. IISER 2026 entrance exam was conducted in computer-based test mode. The duration of the entrance exam was three hours, from 9 AM to 12 noon.

Q: What language will the IISER Entrance Exam be conducted in?

The question paper was in English and Hindi. The candidates must read all the given instructions provided in the question paper at the time of the examination.