The IISER 2027 question paper will be released on the same day as the successful conduct of the examination. The exam officials are yet to release the exam notification; however, based on the previous trends, it is anticipated that the IAT 2027 exam will be held in the first week of June 2027.
IAT PYQ helps the candidate to get insight into the types of questions asked in the examination, the difficulty level of the exam, IISER exam pattern and other details. Candidates preparing for IISER must refer to the previous year’s question papers to gain a deeper understanding of the topics covered in Physics, Mathematics, Chemistry, and Biology subjects.
Candidates can download the IISER previous year question paper from this page. Check out this SciAstra IISER exam page for all the information related to the IAT question paper PDF, exam dates, pattern and other details here.
IAT 2027 Question Paper
The IAT 2027 Question Paper will be released by the Joint Admissions Committee (JAC) after the successful conduct of the IISER Aptitude Test 2027. The question paper will include multiple-choice questions (MCQs) from Physics, Chemistry, Mathematics, and Biology, based on the Class 11 and Class 12 syllabus. Candidates can use the official question paper to analyse the exam's difficulty level, question distribution, and important topics. It also serves as a valuable resource for future aspirants preparing for the IISER Aptitude Test. Along with the question paper, the official answer key and response sheet will help candidates estimate their scores before the declaration of the IAT 2027 result.
IAT 2026 Question Paper Solution
The solution of the IAT 2026 paper is available below in the following YouTube video:
IAT 2027 Exam Dates
Since IAT 2027 admission dates are yet to be announced by the exam officials, candidates can check out the previous year’s dates from here for reference:
Event Name | Tentative Dates |
IAT 2027 Notification | First Week of February 2027 |
IISER 2027 Application Form Start Date | First Week of March 2027 |
IISER 2027 Application Form End Date | Second Week of April 2027 |
IAT 2027 Application Correction Window | Third Week of April 2027 |
IISER Aptitude Test 2027 | First Week of June 2027 |
IAT 2027 Provisional Answer Key | First Week of June 2027 (After the successful conduct of the exam) |
IAT 2027 Student Response Sheet | Second Week of June 2027 |
IAT 2027 Result Release Date | Fourth Week of June 2027 |
Where can I find IAT PYQs?
IAT PYQs are available on the official IISER admission website (iiseradmission.in) and in various preparation books and online educational platforms.
SciAstra also provides the free IAT PYQs. Click on one of the following links to access the IAT PYQs for free:
Where can I find free PYQs for IAT?
To get free PYQs, candidates must visit the official website of the IISER Aptitude Test – iiseradmission.in.
You can also find the FAQs on the following pages of SciAstra:
Why should I practice IAT PYQs?
Practising IAT PYQs helps in identifying frequently asked topics, improving problem-solving speed, and gaining familiarity with the exam format. It also enables candidates to assess their preparation level and build confidence before the actual exam.
IAT 2026 Question Paper
The exam officials have scheduled to conduct the exam on June 7, 2026, in online/CBT mode at multiple exam centres across the nation. Based on the previous year's trends, it is anticipated that the IISER 2026 question paper will be released on the same day after the sucessful conduct of the exam. Candidates will be notified here upon the release of the question paper:
IISER 2026 Question Paper | IAT Question Paper 2026 (English) IAT Question Paper 2026 (Hindi) |
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IAT Previous Year Question Paper
Candidates can check out the IAT PYQ pdf in Hindi and English medium from here:
Year | Question Paper English Medium | Question Paper Hindi Medium |
2025 | Download Now | Download Now |
2024 | Download Now | Download Now |
2023 | Download Now | Download Now |
2022 | Download Now | Download Now |
2021 | Download Now | Download Now |
2019 | Download Now | Download Now |
Are all four subjects (PCMB) compulsory in the IAT?
The question paper of IAT contains all four sections: Physics, Chemistry, Mathematics and Biology. But, it is not compulsory for candidates to attempt all four sections to get admission to IISERs. It is recommended to attempt all four sections to increase your overall score and chances of selection.
For admission to IIT Madras, IIT Guwahati, and IISc Bengaluru, it is compulsory to attempt Physics, Chemistry and Mathematics.
How many questions are there in the IAT question paper?
There are a total of 60 questions in the IAT question paper from Physics, Chemistry, Mathematics and Biology sections.
A total of 15 questions are asked from each section/subject. Each question carries 4 marks.
How many sections are there in the IAT question paper?
There are four sections in the IAT question paper:
1. Physics (15 questions, 60 marks)
2. Chemistry (15 questions, 60 marks)
3. Mathematics (15 questions, 60 marks)
4. Biology (15 questions, 60 marks)
All the questions in these sections are multiple-choice based questions (MCQs). These questions are asked from NCERT Class 11 and Class 12 PCB syllabi.
What is the duration of the IISER Aptitude Test (IAT)?
The duration of IISER Aptitude Test (IAT) is 3 hours (80 minutes). PwD candidates having disabilities with at least 40% impairment as applicable are eligible for one hour compensatory time in the IISER Aptitude Test. Therefore, the total duration of the exam for candidates belonging to PwD Category is 4 hours.
All the candidates will have to visit the IAT exam centre allotted to them to take the exam. It will be conducted online in computer-based test (CBT) mode.
Topic-Wise Analysis from IISER Previous Year Papers
Based on the past few years’ trends:
Subject | High-Weightage Topics |
|---|---|
Physics | Mechanics, Optics, Thermodynamics, Electrostatics |
Chemistry | Organic Reactions, Chemical Bonding, Equilibrium |
Mathematics | Calculus, Coordinate Geometry, Probability |
Biology | Cell Biology, Genetics, Ecology, Human Physiology |
Benefits of Solving IAT PYQ
Check out the reasons why a candidate must go through the IISER previous year question papers from here:
Understand Exam Structure – Get familiar with section-wise weightage and time allocation.
Identify Important Topics – Spot frequently repeated concepts and high-scoring areas.
Improve Speed & Accuracy – Practice under timed conditions to enhance problem-solving skills.
Boost Confidence – Familiarity with question types reduces exam-day anxiety.
Evaluate Preparation Level– Self-assess strengths and weaknesses for better revision planning
Are questions repeated in the IAT exam?
While exact questions are rarely repeated, similar concepts and question patterns often reappear in the IAT exam. Therefore, practising PYQs helps in understanding important concepts and types of questions that are likely to be asked.
How should I use IAT PYQs effectively for preparation?
Candidates should solve PYQs topic-wise during the initial phase of preparation and attempt full-length papers under timed conditions later. Analysing mistakes, understanding solutions, and revising weak areas are essential for effective preparation using PYQs.
