IAT Previous Year Question Paper: Candidates can check the IAT previous year question paper on this page. While preparing for the IISER IAT entrance exam, it is advised to solve past year papers to understand the benefits and answer frequently asked questions from students. The IAT paper consists of 60 multiple choice questions, with 15 each from Physics, Chemistry, Math, Biology. The difficulty level of questions in IAT is moderate. Each correct answer will be awarded 4 marks. 1 mark will be deducted for each incorrect answer. The Indian Institute of Science Education and Research Aptitude Test (IAT) is a highly competitive entrance examination conducted for admission into the five-year BS-MS dual degree programs offered by IISERs across India. In this article, candidates are advised to check the previous year's question paper below.
Let’s understand the particular details about this exam before diving into the question paper.
Particulars | Details |
Exam Name | IISER Aptitude Test (IAT) |
Conducting Body | Indian Institutes of Science Education and Research (IISER) |
Purpose | Admission to 5-Year BS-MS Dual Degree Program |
Subjects Covered | Physics, Chemistry, Mathematics, Biology |
Question Paper Format | Multiple Choice Questions (MCQs) |
Number of Questions | 60 questions (15 per subject) |
Total Marks | 180 marks |
Marking Scheme | +3 for correct answer, -1 for incorrect answer |
Medium of Exam | English |
Availability of Papers | Limited official release; based on memory-based questions and unofficial sources |
Benefits of Solving Past Papers | Understand exam pattern, identify important topics, improve time management |
Recommended For | Students applying through IISER Aptitude Test (IAT) channel |
In this section we will dive into a detailed question paper of each year.
Year | Download IISER papers |
2024 | |
2023 | |
2022 | |
2021 | |
2019 | |
2018 | |
2017 |
You can also practice with the following model question papers:
Model IISER paper 1 | |
Model IISER paper 2 | |
Model IISER paper 2 (Hindi) |
Frequently Asked Questions (FAQs)
IISER IAT exam will be conducted in online (computer-based) mode across various test centers in India.
Candidates can check the IISER IAT previou year question paper on the official website.
Yes, there is negative marking. Each correct answer awards 3 marks, and 1 mark is deducted for every incorrect answer.
The IAT includes four subjects: Physics, Chemistry, Mathematics, and Biology. Candidates can choose any three out of the four subjects while attempting the exam.
On Question asked by student community
You can find IISER Aptitude Test (IAT) previous year question papers and answer keys on educational websites like Careers 360. They provide with the official question papers as well as the answer key.
Read more at
https://engineering.careers360.com/articles/iiser-2025-question-paper-solutions
Hello,
If you have uploaded the old EWS certificate (2024–2025) instead of the new one (2025–2026), there is a chance that it may not be accepted, as the IISER notification clearly asks for the valid and updated EWS certificate for the year 2025–2026.
Right now, if the correction window is closed, you won’t be able to change it. But don’t worry too much. Once the results are out and before the counselling starts (before 16 June), there is usually a document verification process. You may get a chance to upload the correct and updated certificate during that time.
Just make sure you get the 2025–2026 EWS certificate ready as soon as possible, so if they allow updates before counselling, you can upload the correct one.
Hope it helps !
Hello,
If you have selected OBC-NCL category and uploaded a Central OBC-NCL certificate , then there is no issue .
IISER accepts Central OBC-NCL certificate , as long as it is valid and issued by a competent authority. Just make sure the certificate is:
Issued within one year from the application date.
Clearly mentions OBC-NCL and your caste is in the central list .
If these points are okay, then your form is fine.
Hope it helps !
Hello aspirant,
Applicants must take either the JEE Main or JEE Advanced exam in order to be considered for admission to the best engineering institutes in India. JEE Advanced and Main are administered by separate bodies. Because the JEE Advanced exam is more difficult than the JEE Main exam, candidates who are prepared for it have an advantage.
To know the complete preparation strategies, you can visit our website by clicking on the link given below.
Thank you
Hope this information helps you.
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