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.

Total marks of the IISER Entrance Exam are 240. The total number of questions in the exam is 60, each carrying four marks. Marks in each section are 15, making the sectional weightage 60. Questions are asked on Physics, Chemistry, Biology and Mathematics. In case of a wrong answer, there will be a deduction of one mark. The structure of the exam is given below. 

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

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.

According to the IISER Entrance Exam 2025 analysis, Physics was the toughest section of the exam. The overall difficulty level ranged from moderate to tough. The topics covered in the question papers were Electricity and Magnetism, Mechanics, Optics and Modern Physics. The questions were distributed from the syllabus and included both Class 11 and 12 chapters. 

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 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.

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.

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.

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.