How to prepare for IAT 2026 in 30 Days: The IAT 2026 exam will be held on June 7, 2026, at test centres across India. Candidates have limited time to prepare for the exam. In such a short window, it is important for them to follow a smart and focused preparation strategy for the IISER Aptitude Test 2026.
In this SciAstra article, we have outlined an effective plan to help you prepare for IAT 2026 in 30 days. It covers the key resources and the right approach you should follow over these 30 days.
IAT 2026: Overview
Candidates first need to understand the overview of the IAT exam before appearing in it. This understanding will help them know the IAT 2026 exam pattern and support the preparation.
Features | Details |
Exam Name | IISER Aptitude Test (IAT), IISER Entrance Exam |
Exam Organising Institute | One of the IISERs |
Exam Level | Graduate Level |
Courses Offered | 5 year BS-MS dual degree 4 year BS degree 4 year BTech degree |
Exam Mode | Online |
Exam Frequency | Once a year |
Type of Question | Multiple Choice Question (60 questions) |
IAT Marking Scheme | Each correct response = +4 marks Each incorrect response = -1 marks Each unattempted question = 0 mark |
Official Website |
How to Prepare for the IAT 2026 in 30 Days?
To prepare for the IISER Aptitude Test 2026 in days, candidates must focus on revising concepts of the IAT 2026 syllabus and use the most useful resource for preparation.
This preparation approach has been broken down below.
Features | Details |
Exam Name | IISER Aptitude Test (IAT), IISER Entrance Exam |
Exam Organising Institute | One of the IISERs |
Exam Level | Graduate Level |
Courses Offered | 5 year BS-MS dual degree 4 year BS degree 4 year BTech degree |
Exam Mode | Online |
Exam Frequency | Once a year |
Type of Question | Multiple Choice Question (60 questions) |
IAT Marking Scheme | Each correct response = +4 marks Each incorrect response = -1 marks Each unttempeted question = 0 mark |
Official Website |
Revise IAT 2026 Chapterwise Syllabus
The syllabus of IAT 2026 covers the Physics, Chemistry, Maths, and Biology topics from the NCERT Classes 11 and 12 curricula. Therefore, the syllabus is vast, but you can cover it because you have already studied these topics in Classes 11 and 12.
Now, from day 1 to day 7, you must revise all the PCMB topics from the IAT 2026 syllabus.
The revision will help you strengthen memory retention of the syllabus topics and provide you with conceptual clarity.
During revision, do not try to mug up topics; instead, try to understand concepts.
Make detailed notes of each topic for a quick revision.
Solve NCERT Questions
Once you have revised all the syllabus topics, it is time to assess your knowledge. For this, you must complete the following tasks from day 8 to day 15.
1. Solve NCERT Questions
Solve NCERT questions from Physics, Chemistry, Maths, and Biology. We know that it is not possible to solve all questions from all the Class 11 and 12 PCMB books in such a short duration. Therefore, you can focus on solving questions from the high-weightage chapters.
SciAstra has analysed the previous years’ question papers of the IAT from 2017 to 2025 to identify the IAT high-weightage chapters from which questions have been asked in the IISER Aptitude Test.
Download the PDF available below to check the IAT high-weightage chapters for IAT 2026.
IAT Chapter Trend Analysis (2017 to 2025) | |
IAT High-Weightage Chapters | IAT High-Weightage Topics |
2. Take Chapter-Wise Mock Tests
After solving NCERT questions, IAT 2026 candidates must take the chapter-wise mock tests. The chapter-wise mock tests will help you identify the topics which are your strengths and the chapters which are your weaknesses.
According to these strengths and weaknesses, you can improve your preparation strategy and revise the high-weightage chapters which are your weaknesses.
To get the high-quality chapter-wise mock tests of IAT, you can refer to the SciAstra IISER Aptitude Test (IAT) 2026 Mock Test Book.
This book is a complete prep guide for students aiming to crack the IISER Aptitude Test (IAT) and includes the following:
SciAstra IISER Aptitude Test (IAT) 2026 Mock Test Book | Features |
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3. NCERT Diagrams and Flowcharts
Make labelled diagrams and flowcharts mentioned in PCMB books of NCERT Classes 11 and 12.
This method will help in simplifying concepts and help you with remembering concepts.
4. Timed-Mock Test
The duration of the IAT 2026 exam is 3 hours. As a candidate, you will have to solve all the questions within this duration.
Therefore, it is important for you to maintain both accuracy and speed during the exam. To achieve this objective, you must solve timed mock tests of IAT. This refers to the mock tests with a duration equal to the IAT exam duration (3 hours) and questions based on the syllabus of the exam.
SciAstra's IAT FOCUS Test Series is also a collection of timed mock tests for IAT. If you want to take timed mock tests, you can consider this test series, as it is based on the accurate IAT 2026 exam pattern and simulates conditions the same as the real IAT exam.
The details about the SciAstra IAT FOCUS Test Series are mentioned below:
SciAstra’s IAT FOCUS Test Series Features | |
Subject-wise score |
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Topic-wise score |
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Time spent per question |
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Correct/incorrect/skipped patterns |
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Accuracy vs speed graph |
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Weak area identification |
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AIR Prediction |
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Take IAT Full Mocks
From day 16 to day 20, take IAT full mock tests containing questions from different chapters of the IAT and based on the exam syllabus.
The full mock tests can be highly beneficial if they provide you with a detailed analysis of your strong and weak topics and time spent on each question. This will help you improve your performance.
SciAstra’s IAT FOCUS Test Series also contains IAT full-length mock tests. It also provides detailed analysis about the average time taken to solve each question and candidates’ strong and weak areas.
While solving the full mock tests, focus on the following points:
Identify the questions that you solved incorrectly.
Revise concepts related to these questions.
Solve the questions in which you make mistakes again. This approach will provide you with conceptual clarity.
Solve IAT PYQs
Many times, the questions in the IAT are directly from previous years.
Therefore, from day 21 to day 30, you should solve IAT previous years' question papers. Click on the following link to access the PYQs.
Bonus Free Resource for IAT 2026 Prep
If you are a serious aspirant of the IAT 2026, we have the IAT 2026 Rescue Course for you. It covers the following:
Free Live YouTube Classes
Covers PCMB
Free Lecture Notes
Leverage the opportunity to crack IAT!
SciAstra IAT Rescue Course: Apply Now!
Mistakes to Avoid while Preparing for the IAT 2026
Here are the mistakes that IAT 2026 candidates must avoid while preparing for the exam:
Do not ignore the exam pattern and syllabus.
Do not rely on rote learning instead of conceptual understanding.
Do not skip practising enough mock tests and PYQs.
Poor time management during preparation and practice.
Conclusion
In conclusion, preparing for IAT 2026 in 30 days is achievable with a focused and disciplined approach. By understanding the exam pattern, revising NCERT concepts, practising questions, and taking regular mock tests, candidates can strengthen their preparation effectively. Consistent revision, analysis of mistakes, and time management play a crucial role in improving performance. Avoiding common mistakes like rote learning and neglecting mocks will further enhance results. With the right strategy, dedication, and smart use of resources, candidates can maximise their chances of success and secure admission to prestigious IISER institutes.
