IISER Mock Test 2026
The IAT 2025 was conducted on Sunday, May 25, 2025 at 9:00 AM. The IISER Aptitude Test (IAT) is a computer-based, national-level entrance exam. The admission to Indian Institutes of Science Education and Research institutes for BS-MS Dual Degree, BS, and B.Tech programs is done through IAT. This test is organised to examine the candidate's knowledge and aptitude in the fundamental sciences. The IISER mock test is a study material that can ease and support your preparation process.
The Mockers team has developed the IISER mock test free following the actual exam pattern & syllabus, which helps you practice questions and identify areas to improve.
About the IISER Aptitude Test (IAT)
The IAT opens doors for students interested in research and academia. This entrance test is conducted by IISERs to examine the candidates' potential for admission in any one of the seven IISERs. The IAT is considered a very challenging exam, more than JEE Main, but its difficulty level is less than JEE Advanced.
Overview | |
Exam Name | IISER Aptitude Test or IAT |
Participating Institutes | Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, Tirupati, IISc Bangalore (for specific BS programs), and IIT Madras (specific BS programs) |
Exam Frequency | Once a year |
Duration | 180 minutes (3 hours) |
Sections | Four
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Marking Scheme |
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Total Questions | 60 |
Total Marks | 240 |
Question Type | Multiple-choice questions |
Syllabus | The IAT syllabus covers topics from Class 11 and Class 12 Biology, Chemistry, Physics, and Mathematics. |
Exam Date | May 25, 2025 at 9 AM (Completed) |
IAT Result Link | https://iiseradmission.in/examination/result.html |
Official Website | https://iiseradmission.in/ |
Who is Eligible for the IISER Aptitude Test?
Everyone can’t participate in the IISER Aptitude Test (IAT), a candidate must meet the following criteria:
- Nationality should be an Indian citizen, PIO, or OCI holder.
- Candidates must have passed their Class XII (or equivalent) examination with a science stream in the current or last two years.
- They must have taken at least three subjects from Physics, Chemistry, Mathematics, and Biology.
- Candidates from the general category must have an aggregate of at least 60% marks in their Class XII (or equivalent) exam.
- Those who are under SC/ST/PwD categories need a minimum of 55% marks.
Key Features: Online IISER Mock Test With Answers
Get to know some of the compelling features of our IISER mock test 2026. You must know these highlights because it is a deciding factor whether to use the mock test or not.
- Follow the actual IISER exam pattern & syllabus.
- Available in online CBT mode 24/7.
- Multiple sets of mock test for IISER are available for free.
- Each set has 60 questions in MCQ format and their answers with detailed explanations.
- A detailed performance report is also available after submitting the IISER free online mock test.
Set-Wise Mock Test for IISER Online
Every IISER mock test with answers set is an opportunity to understand the preparation and knowledge gaps to improve. Experts and toppers often suggest solving more than one or two sets during the preparation. Therefore, our team is offering a set-wise mock test in online MCQ format.
Each set follows the same exam pattern and syllabus, but has unique questions. Solving a variety of questions across various difficulty levels brings new challenges. Eventually, it boosts your speed and accuracy, which is crucial for any competitive exam. Direct links to access the IISER mock test are available here:
IISER Mock Test With Answers
At this time, you are in the preparation phase: revising and covering the challenging topics. And when you try to attempt the IISER mock test free, you may face some challenging questions. In addition to this, you need solutions after completing the test to understand how well you performed.
The IISER mock test 2026 with answers is prepared for this purpose. It helps you tackle the challenging questions and cross-check your answers to understand the areas to improve. To keep the test process fair, our system hides the solutions until you submit the mock test. Once submitted, you can check the detailed answers with explanations. This way, you can rely on self-study to practice questions and understand your weaknesses to strengthen.
How to Take the Online IISER Mock Test 2026?
The process to reach and take the mock test for IISER is quite simple. Follow the steps we have shared below:
Step 1: The process begins by accessing the website “Mockers.in”, which is India's most loved free mock test platform.
Step 2: Go to “Exam Categories,” which is available in the menu/navigation section, and then click on it.

Step 3: You need to find and click on the Engineering section within the “Exam Categories.”

Step 4: You have many exam names to click; choose “IISER”

Step 5: Now, the new page opens, containing an explore button to give you access to the IISER free online mock test. Ensure you click on that button to take the online mock test series.

IAT Important Dates
An IISER aspirant must keep an eye on all the important dates of IAT. Check the table below for the tentative 2026 IAT important dates:
Event Name | Important Dates |
Application Portal opens | March 2026 |
Application Portal closes | April 2026 |
Corrections in Application Forms | April 2026 |
Release of Hall Ticket | May 2026 |
IISER Aptitude Test | May 2026 |
Answer Key display | May 2026 |
Portal opens for filing Objections | May 2026 |
Portal closes for filing objections | June 2026 |
Display of final answer keys | June 2026 |
Publication of the IAT result | June 2026 |
Registration for the counselling process | June & July of 2026 |
For the latest updates, consider checking the official website.
Admission and Selection Process for IISER
Before you begin taking the IISER mock test with answers, ensure you know everything about the admission and selection process for IISER. Usually, it contains four steps:
- Fill out the online application.
- Appear for the IISER Aptitude Test (IAT).
- Check the result and the rank list.
- Appear for the online counseling process to know about the seat allocation.
SEAT Availability at IISER
The tentative number of total seats is 2363 available for the BS-MS/BS/B.Tech programs. Check out the table below for each IISER showing the number of seats.
BS-MS Program | Number of Seats |
IISER Berhampur | 300 |
IISER Bhopal | 300 |
IISER Kolkata | 280 |
IISER Kolkata (BS-MS in Computational and Data Sciences) | 30 |
IISER Mohali | 270 |
IISER Pune | 288 |
IISER Tirupati | 350 |
IISER Thiruvananthapuram | 320 |
Total | 2138 |
BS/B.Tech. Programs | Number of Seats |
IISER Bhopal (B.Tech.) | 140 |
IISER Bhopal (Economic Sciences) | 35 |
IISER Tirupati (Economic and Statistical Sciences) | 50 |
Total | 225 |
Prepare Like a Pro for the IAT
The IAT is a computer-based test with 60 multiple-choice questions that should be solved within three hours. It means you need a strategic approach, and here are the tips you need for it.
- Master the Syllabus: Refer to the high-quality study material, then the NCERT textbooks. Yes, the NCERT is core, but focus on reference textbooks to master the IAT syllabus.
- Practice to Improve Time Management Skills: For competitive exams, time is paramount. One who masters it can easily secure their rank for admission to their preferred course. Build daily practice habits to improve time management and practice numerous questions. This is where, IISER mock test enters. It helps you take a full-length test every week to simulate the exam environment at your place. Along with mock tests, focus on IISER PYQs and sample papers, too.
- Avoid Rote Memorisation & Focus on Conceptual Clarity: To do this, create short notes of formulas, important definitions, and common mistakes you have been making throughout the IISER mock test free practice sessions. Keep in mind that the more problems you solve, the more familiar you will become with different question types and problem-solving strategies, so keep doing it. And focus on understanding the "why" behind the concepts in each subject you cover.
Conclusion
Join thousands of candidates who have already attempted the IISER mock test 2026 at Mockers. From questions’ practice to revision, these tests are capable enough to give you a reality check of your preparation. It not only tests your knowledge and preparedness for the IAT but also boosts your confidence for the actual exam. Our platform is designed to deliver the best mock test experience you can ever have — it is interactive, portable (access on smartphone 24/7), and complies with the actual exam pattern and syllabus of IISER.