Which subject carries maximum weightage at IISER Entrance Examination?

IISER Entrance Exam carries equal weightage of all the subjects which are asked in the examination. The IISER Entrance Exam Marking Scheme is as follows: 1. Physics 15 questions will be asked in the examination and 60 marks will be the maximum awarded for all the correct answers. 2. Mathematics- 15 questions will be asked in the examination and 60 marks will be the maximum awarded for all the correct answers. 3. Chemistry 15 questions will be asked in the examination and 60 marks will be the maximum awarded for all the correct answers. 4. Biology 15 questions will be asked in the examination and 60 marks will be the maximum awarded for all the correct answers. Marking scheme: Candidates will be awarded three marks for each correct answer. There will be negative marking of one mark for each incorrect answer.

What are the types of questions asked in the IISER 2025 exam?

The IISER Entrance Exam questions are objective and carries multiple choices (MCQs). Each question has four answer options.

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

The IISER Entrance Exam Marking Scheme is as follows: Physics 15 questions will be asked in the examination and 60 marks will be the maximum awarded for all the correct answers. Mathematics- 15 questions will be asked in the examination and 60 marks will be the maximum awarded for all the correct answers. Chemistry 15 questions will be asked in the examination and 60 marks will be the maximum awarded for all the correct answers. Biology 15 questions will be asked in the examination and 60 marks will be the maximum awarded for all the correct answers. Marking scheme: Candidates will be awarded three marks for each correct answer. There will be negative marking of one mark for each incorrect answer.

IISER Entrance Exam Preparation 2026: Tips, Strategy & Guide

388 Students Q&A

Updated on Nov 3, 2025 17:17 IST

By Sreetama Datta Roy, Manager Content

IISER Entrance Exam Preparation is one way to qualify for an exam, but some other ways can be included during the preparation period, like practising mock tests. The IAT Mock Test 2025 link was activated by the exam authority for the test takers to get an experimental practice of the IAT 2025 exam for candidates who appeared for the IISER 2025 exam.

The Indian Institute of Science Education and Research conducts the IISER exam to offer admission in a five-year-long BS-MS dual degree course at the institutes in India. In order to ace the national-level entrance exam, students need to prepare well, get all the right study material, solve mock tests, solve past years' question papers and much more in order to qualify.

Students who wish to appear for the IAT exam should go through the step-wise preparation tips on this Shiksha page that can help them get an effective preparation strategy and understanding of passing a tough competitive exam.