IISER.in is an independent educational guide by Mathiit for students and families exploring IISERs and IAT.
About this independent guideReviewed 13 September 2026
Why this guide exists.
Choosing a science degree involves more than finding an exam date. Students need to understand what they will study, whether they meet the requirements and how to prepare with purpose.
This guide brings those questions together in plain language. Official information is linked to its source, dates are labelled by admission year, and study advice is presented separately from admission rules.
Our editorial approach
Start with primary sources
Use the IISER admissions portal and institute websites for admission rules, programmes, papers and official notices.
Make the year visible
Keep 2026 reference information distinct from preparation for 2027 and any future announcements.
Explain without promising
Offer useful context and preparation methods without inventing cutoffs, admission guarantees or course claims.
Connect with Mathiit.
EDUCATIONAL GUIDANCE
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For general educational guidance or feedback about this guide, use Mathiit’s existing contact channel.
Each worked solution is written afresh. Questions and options are checked for source fidelity; answers are derived and mapped to the displayed options; reasoning is reviewed again through recalculation, alternative arguments or option elimination as appropriate. These are two separate review passes by the same assistant, not two independent human reviewers.
When a source has an error or an unstated assumption, the page explains it. A source key is never treated as sufficient proof. Read the correction notes →