How should I start preparing for the IISER aptitude test as a 12th beginner?

How should I start preparing for the IISER aptitude test as a 12th beginner?

Are you a student who just entered 12th grade and has decided to get into IISER? You must be passionate about research. To help acheive your passion, it is a very crucial time for you to start preparing for the IISER Aptitude Test (IAT). In this article, we will explain how you should prepare for IAT as a 12th beginner.

Understanding the IISER Aptitude Test:

Before diving into preparation, it’s crucial to understand the structure and syllabus of the IAT. The IAT typically consists of questions from four subjects: Mathematics, Physics, Chemistry, and Biology. The exam aims to test your conceptual understanding and problem-solving skills in these subjects. The latest pattern involves multiple-choice questions (MCQs) with a total of 60 questions divided equally among the four subjects, and the duration of the exam is three hours. Click here to check the exam pattern.

Step-by-Step Preparation Guide:

  1. Get Familiar with the Syllabus-

The first step is to get a detailed understanding of the IAT syllabus. The syllabus for the IAT is based on the NCERT curriculum for classes 11 and 12. Although, NCERT is not sufficient. We highly recommend our IAT Preparation Book and online courses. To check the syllabus of IAT, click here.

Having a clear understanding of the syllabus will help you focus your efforts on the right topics.

  1. Create a Study Schedule-

A well-structured study schedule is vital for systematic preparation. Allocate time for each subject based on your strengths and weaknesses. Here’s a suggested study plan:

  • Morning: Focus on a subject you find challenging.
  • Afternoon: Work on another subject with a mix of theory and practice problems.
  • Evening: Revise what you studied in the morning and solve previous years’ papers or sample questions.

Ensure that short breaks and recreational activities are included to avoid burnout.

  1. Strengthen Your Concepts-

The IAT tests your understanding of concepts rather than rote learning. Spend time understanding the fundamental principles and theories. Use visual aids like diagrams, charts, and videos to grasp complex concepts better. For subjects like Physics and Chemistry, solving numerical problems is crucial to cement your understanding.

  1. Practice Regularly-

Practising regularly is the key to success in the IAT. Solve as many papers from previous years and mock tests as you can. This will help you get accustomed to the exam pattern, manage your time effectively, and identify areas where you need improvement. You can download our SciAstra app to find solved PYQs and mock tests.

  1. Take Care of Your Health-

While preparing for competitive exams, it’s easy to neglect your health. Ensure you get adequate sleep, eat nutritious food, and engage in physical activities. A healthy body and mind will enhance your focus and productivity.

  1. Stay Updated-

Stay updated with the latest information regarding the IAT by regularly visiting the official IISER admissions website. You can also follow our YouTube channel to find the latest information on IAT as it is released.


Cracking the IISER Aptitude Test requires a well-planned approach, a thorough understanding of concepts, regular practice, and staying updated with the latest information. By following the steps outlined in this guide and dedicating yourself to consistent study, you can maximise your chances of success. Remember, perseverance and hard work are your best tools in this journey. 


  1. What is the structure of the IISER Aptitude Test (IAT)?

The IAT consists of multiple-choice questions from four subjects: Mathematics, Physics, Chemistry, and Biology. There are 60 questions in total, with 15 questions from each subject, and the exam duration is three hours.

  1. How should I create a study schedule for the IAT?

Create a balanced schedule focusing on your strengths and weaknesses. Allocate 2-3 hours in the morning for challenging subjects, mix theory and practice in the afternoon, and revise in the evening. Include breaks to avoid burnout.

  1. How important is practising previous years’ papers and mock tests?

Practicing previous years’ papers and mock tests is crucial for familiarizing yourself with the exam pattern, improving time management, and identifying areas for improvement. Use online platforms like Embibe and Unacademy for additional practice.

       4.Where can I find the latest updates on the IAT?

Stay updated by regularly visiting the official IISER admissions website Important updates on application dates, eligibility criteria, exam dates, and admit card releases will be posted there. Also, follow our YouTube channel.

About us: 

SciAstra is a team of scientists and research scholars from the top research institutes around the world, like Oxford, Harvard, Cambridge, and so on. Our vision is to promote critical thinking and scientific temperament by helping students pursue careers in science. 

We offer many free and paid courses where our mentors from the top research institutes like IISER, NISER, IACS, CMI, ISI, IISC Bangalore, etc., teach students in live classes, with study materials,  mock tests, books, and everything needed. We have taught more than 10,000 students already since 2021 and achieved over 1000 selections with AIR 1, 7,10, 12, and 13 in  IISc Bengaluru, IISERs, NISER, IACS, and so on.  If you are looking to prepare for IAT / NEST 2024, you can check out our courses and get access to live classes, recorded lectures, study material, mock tests, doubt-clearing classes, and much more!

To know more about us, click here OR download the SciAstra App from the Play Store and App Store!

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