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 |
Get expert advice on college selection, admission chances, and career path in a personalized counselling session.
In this section we will dive into a detailed question paper of each year.
| Year | Download IISER Papers |
|---|---|
| 2025 | IISER 2025 question paper |
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)
Candidates can check the IISER IAT previou year question paper on the official website.
The IAT includes four subjects: Physics, Chemistry, Mathematics, and Biology. Candidates can choose any three out of the four subjects while attempting the exam.
Yes, there is negative marking. Each correct answer awards 3 marks, and 1 mark is deducted for every incorrect answer.
IISER IAT exam will be conducted in online (computer-based) mode across various test centers in India.
On Question asked by student community
Hello Student,
This usually happens when all the documents are not submitted, due to which the system automatically puts your category under General Quota. What you need to do is to contacnt the Joint Admission Committee and request the category verification manually, before the counselling process starts.
Hi! To prepare for the IISER Aptitude Test, you need to understand the syllabus, exam pattern, and follow a proper preparation strategy. Click on the links below to learn more.
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
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
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