IISER Aptitude Test.
Your path to science.
Prepare for IAT with a complete IISER exam guide, a detailed syllabus, previous-year questions and worked solutions. Explore the seven IISERs and plan your next step with Mathiit.
Preparing for 2027? Start with the fundamentals.
Exam rules below are labelled with their confirmed admission year.
IISER Aptitude Test
Preparing for IAT 2027? Build your foundations now. The next exam schedule is not yet available in the admission information reviewed on 13 September 2026. View dates and updates →
A clearer route to your next step.
From understanding the exam to choosing a programme, find the information that matters to you.
Is IAT right for me?
Learn what the exam assesses and where an IISER education can lead.
Get the overview →Am I eligible?
Check qualifying years, subject requirements and programme-specific conditions.
Read eligibility →What should I study?
Connect the complete syllabus with past papers and a practical study routine.
Explore the syllabus →Which IISER programme?
Compare the campuses and understand the degree options available through IAT.
Explore the IISERs →Learn science.
Learn how to discover.
IISERs bring science education and research together. For students who enjoy asking why, connecting ideas and working through unfamiliar problems, they offer a path worth exploring.
See campuses & degree optionsExplore your interests
Understand the programmes before comparing college names or closing ranks.
Build across the four subjects
Use the complete syllabus to identify strengths and unfamiliar areas.
Apply, take IAT and make your choices
Prepare your documents, track the dates for your admission year and review counselling decisions carefully.
Understand. Practise. Review.
Know your scope.
Complete subject and chapter coverage, organised into a practical study checklist.
View subject guide →Study the questions.
Practise 420 questions from 2020–2026, with fresh worked solutions and answer explanations.
Open the paper library →Know what comes next.
Understand preferences, offers and seat acceptance before counselling begins.
Explore counselling →Good decisions start with clear information.
Get answers to common IAT questions, covering eligibility, exam pattern, degree choices and preparation.