In what mode will IISER 2026 aptitude test be conducted?

IISER 2026 entrance exam will be conducted in computer-based test mode. The duration of the entrance exam is three hours, from 9 AM to 12 noon.

What are the steps to download IISER answer key?

Candidates will be able to download the answer key PDF of the IISER entrance exam from the exam website. Authorities releases the provisional answer keys and response sheets first, based on which candidates can check the correct answers and calculate probable scores secured in IISER Aptitude test. To download the IISER answer key, candidates can follow the process given below. Go to IISER website - https://iiseradmission.in/ Click on ‘IISER answer key” link. Enter application number and password. Answer key of IISER was displayed on screen. Take a print out of answer key and save it for future reference

What is the difficulty level of IISER entrance test?

IISER entrance examination is considered to be one of the finest and the toughest exams under Science stream undergraduate entrance examination as it provides the BSMS dual degree in the most reputed and research-oriented institutions across the country which is IISERs. On a comparison note, candidates will find the examination tougher than JEE Main exam, but below JEE Advanced. Unlike JEE or NEET the IISER aptitude test asks questions from both mathematics and Biology. Subjects which are found tougher in IISER entrance examination- Organic Chemistry can easily create hassle while giving the entrance examination as there are a lot of naming reactions, its electrophilic and nucleophilic attacks which are commonly asked in the examination. For the bio-background people, the Math section is not usually unscalable. With a decent understanding of regular 11th and 12th-grade concepts, you should be able to crack a few questions without much trouble. Of course, the caveat being that you rock it in the bio section and make up for it. So ensure that you don't falter at this juncture.

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.

What language will the IISER Entrance Exam be conducted in?

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

What will be the section wise marking scheme of IISER Entrance Exam 2026?

The IISER Entrance Exam Marking Scheme is given below. Section Marks Physics 60 Mathematics 60 Chemistry 60 Biology 60 Each section carries 15 marks.

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.

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.

What courses are offered at IISERs?

IISERs offer admission into courses leading to BSMS Dual Degree, and BS Degree (only at IISER Bhopal) Programs. Admissions are via IAT Channel, KVPY Channel and JEE Advanced Channel. Below are the programmes offered by IISERs: 1. Biological Sciences 2. Chemical Sciences 3. Earth & Climate Sciences/Earth & Environmental Sciences 4. Economic Sciences 5. Engineering Sciences (Chemical Engineering, Data Science & Engineering, Electrical Engineering & Computer Science) 6. Geological Sciences 7. Integrated & Interdisciplinary Sciences (Biological Sciences, Chemical Sciences, Mathematical Sciences, Physical Sciences) 8. Mathematical Sciences 9. Physical Sciences.

Will there be any changes made in the IISER Entrance Exam 2026 pattern?

IISER Exam pattern for the academic session 2026-27 is yet to be announced. However, last year pattern remains to be same as of the previous year of IISER Entrance Exam which was also conducted in online mode i.e., computer-based. The only change which is made by the exam conducting body is the marks awarded for each correct anwer.

How many sections are asked in the IISER Entrance Exam?

The IISER Entrance Exam 2026 pattern is expected to remains same as last year. IAT consists of 60 questions, 15 questions each from Biology, Chemistry Mathematics, and Physics. There will be four answer options. Total time for answering the test is 180 minutes. Questions are multiple choice type with only one correct answer. The mode of the exam is computer-based.

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.

IISER Exam Analysis 2025: Check IAT Paper Review & Student Reaction

403 Students Q&A

Updated on Dec 17, 2025 13:38 IST

By Sreetama Datta Roy, Manager Content

IISER Entrance Exam 2026 is expected to be conducted in the fourth week of May 2026. Students planning to appear for the entrance exam are advised to go through the previous year's IISER Aptitude Test Analysis to get a thorough idea of the exam pattern along with the expected questions and topics. The IISER Entrance Exam 2026 Analysis will be provided once the exam is concluded. The basis of the IISER Aptitude Test Analysis is student and expert opinions.

Students who are planning to appear for the IISER Entrance Exam 2026 must check the previous years analysis in terms of difficulty level, question types and topics to decide on their preparation strategy.

According to last year's IISER Aptitude Test analysis, the exam difficulty level was moderate. Mathematics and Biology sections were tough, followed by Physics and Chemistry. Topics were equally distributed from the IISER Entrance Exam syllabus. According to experts, preparing from the NCERT books would be beneficial for the students.

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