Are the students who have studied computer science in HSE eligible to write IISER aptitude test?

The IISER Entrance Exam Mock Test can be taken from the exam website for free. There is no fee involved for this. Neither is it necessary to register for the IISER Aptitude Test. Students can take the mock test as many times as they wish to. 

Yes, it is mandatory to attempt all questions of the IISER Entrance Exam Mock Test at one go. The mock test gets disabled within a few minutes of inactivity. Hence, students should solve all questions within 180 minutes of starting the test. If you are unable to complete the IAT mock test in one sitting, you have to start all over again. 

Yes, the questions of the official IISER Entrance Exam Mock Test are from the syllabus. The total duration of the mock test is 3 hours. It will provide familiarity with the IISER Aptitude Test and help in preparation. 

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. 

There is no age limit to apply or appear for the IISER Entrance Exam 2026. However, applicants must have appeared for their Board examination in 2024, 2025 or 2026. Based on this, applicants must apply for the exam. Apart from this, students should have studied Physics, Chemistry, Biology and Mathematics in Classes 11 and 12. They have to secure a minimum aggregate percentage of 60 (Unreserved categories) and 55 (Reserved categories) in their Class 12 Board exam or equivalent.