IISER Entrance Exam Preparation 2026: Tips, Strategy & Guide

Before starting the IISER Entrance Exam 2026 preparation, students must know about the IISER Aptitude Test Pattern. The table below brings the exam pattern in detail.

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

IAT 2026 will evaluate candidates' knowledge and aptitude in four subjects: Biology, Mathematics, Physics and Chemistry. Since there are four different subjects which the candidates need to study, therefore a strategy must be prepared by the candidates in order to ace the IISER 2025 Entrance Examination. Let's see how to study Physics, Chemistry, Math, Biology for the IISER aptitude test.

IISER 2026 Chemistry Preparation Tips

An aspirant needs to study Chemistry into three different domains, which are namely, Organic Chemistry, Physical Chemistry, and Inorganic Chemistry. There will be 15 questions asked from chemistry in the IISER 2026 examination. For every correct answer, the candidate will be awarded +4 marks. Negative Marking is -1.

The best way to study Organic Chemistry for the IISER Aptitude Test is through understanding the concept very thoroughly, which is given in the NCERT Books and then revising it again and again. Write a summary of important points. Start with the basics and then move ahead with complex concepts. Practice problems each time you study a topic. Make a separate notebook for named reactions & their mechanism and revise it daily.

For Physical Chemistry, study from the NCERT and have your concepts clarified at your coaching institute. To become good at Physical Chemistry, you need to develop problem-solving skills. Be thorough with all the formulae. Solve good quality problems in Physical Chemistry.

Inorganic Chemistry involves a lot of mugging up the concepts. Study the NCERT Books of classes 11 and 12 properly.

IISER 2026 Physics Preparation Tips

Aspirants need to be thorough with the IISER 2026 Syllabus. Here, candidates need to be well acquainted with the topics that they need to ace to score well in the science entrance exam. The topics that form a part of the Physics syllabus include:

• Mathematical Methods
• Mechanics and General Properties of Matter
• Oscillations, Waves and Optics
• Electricity and Magnetism
• Kinetic theory, Thermodynamics
• Modern Physics
• Solid State Physics
• Devices and Electronics

Here is the stepwise preparation tips for IISER 2026 Entrance Examination:

1. Understand the Exam Pattern and Marking Scheme.
2. Get the prescribed Exam syllabus for the applied course.
3. Get all the study material you can to prepare better for IISER Entrance Exam
4. Create a day to day and weekly time table on how much material you can study on a daily basis.

Also Read: IAT 2026 Most Important Topics; Check Subject-wise Important Chapters List Here

Students can follow the details on how to prepare well for the entrance exam and come out with flying colours. 

Know the IISER Entrance Pattern

First and foremost, the candidate needs to understand the IISER Entrance Exam pattern. One should know the duration of the exam, the mode and medium of the Entrance Exam, how many questions will be asked and the weightage of marks. Will the question pattern be in MCQ format or have long answer questions? All the minute questions which bother you, you should know and understand before the entrance exam, so that there is no trouble later on.

Know the IISER Entrance Exam Marking Scheme

Along with the exam pattern, students should know the marking scheme as well. You have to know the minute details as it can help you prepare better, and hence you will have better chances of scoring. You will not have much trouble once you have the pattern in mind and know what to expect in terms of the marking scheme. You should be familiar with which sections carry the most marks, how many long questions will be asked or how many questions come in a section. 

According to the marking scheme of the IISER Aptitude Test, each question will carry four marks, and one mark will be removed for each wrong answer. No marks will be removed for unanswered questions.

Know the IISER Entrance Exam Syllabus

To score well in IISER Entrance Exam, candidates have to thoroughly go through the prescribed syllabus. Even if its general topics which you have covered, go through them once again. Don’t leave out anything. Strategise your plans on an hourly, daily and weekly basis. Cover all the biology, physics, chemistry and mathematics-related notes on different days. Do not mix it up You can do so by following the below-mentioned pointers:

• Cover the subjects thoroughly and know the important topics which have to be covered.
• Segregate the subjects and topics into easy and difficult categories. Cover topics which you find challenging.
• Note down the topics which carry maximum weightage (based on previous years’ question papers).

Go through Prep Books

Along with the syllabus, aspirants should purchase the required books for IISER Entrance Exam 2026. Through prep books, one can study better and understand the subjects and topics. You can identify where you fall behind and which are your strong points. It is advised that you purchase at least two to three prep books to help better understand the test. The prep books will give you an idea of the syllabus, know what type of questions can be asked in the Entrance Exam and much more.

Prepare a TimeTable

One of the most important elements while preparing for an exam is time management. Make a schedule as to how much material you can cover on a daily, weekly and monthly basis. By creating a plan, the candidate can cover all the topics which are to come in the Entrance Exam.

Refer to Past Years’ Question Papers

Solve as many question papers as you can. The best way to get a grip of what you can expect is by going through the previous year’s question papers. You can understand the weightage of marks, how many long question answers are there, you can understand which section has what type of questions and how many sections carry the maximum amount of marks where you can score well.

Revision

Revise your work at the end of the day. Whatever you have studied, revise the work, especially the important parts which you have had a tough time learning or understanding. The more revisions, the more you will understand the topics better.

Take a look at the frequently asked questions (FAQs) regarding IISER Entrance Exam 2026 Preparation.