IISER Entrance Exam Question Papers, Sample Papers PDF: Download Free

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.

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.

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.

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. 

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 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.

IISER Marks vs Rank is generally the data interpretation of the candidates who had appeared in the IAT examination. Here, candidates will be able to know the expected AIR rank/ category rank that they will achieve based on the marks scored by them in the IISER examination. 

IAT candidates' ranks are based on their combined scores from the four sections (Physics, Chemistry, Mathematics and Biology). The exam comprises 60 questions with a total score of 240 marks. 

IISERs offer admission into courses leading to BSMS Dual Degree and BS Degree (only at IISER Bhopal) Programs. 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.

Indian Institutes of Science Education and Research conduct an entrance exam in order to provide 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. Candidates who cleared their Class 12 in the Science stream are eligible to apply for the IISER Entrance Exam 2023. As per the IISER Entrance Exam pattern, there are a total of 60 objective questions that candidates need to complete in three hours duration.

Earlier, there were three channels through which candidates could get admissions to the courses offered at IISER institutions, IISc Bangalore and IIT Madras. From the academic session 2025, admissions are done through the IAT exam channel only, and the other two channels, including JEE Main and KVPY scores, have been discontinued.