IISER 2027 Exam Date — IAT Registration, Exam & Result
IISER Aptitude Test (IAT) 2027 dates — registration, admit card, exam day, result, and counselling timeline for BS-MS admission at the IISERs.
If your goal is a research career in pure science rather than engineering or medicine, the IISERs are the target — and the IISER Aptitude Test (IAT) is the door. IAT is a computer-based test across all four science subjects, usually in late May or early June, with negative marking. This page lists every expected IISER 2027 date — registration, admit card, exam, result, and admission — based on the recent pattern.
IISER IAT 2027 — Expected Timeline
| Event | Expected Date | Notes |
|---|---|---|
| Registration Opens | March-April 2027 | On iiseradmission.in |
| Registration Deadline | May 2027 | Limited late window, if any |
| Admit Card Release | Mid-May 2027 | Download from the portal |
| Exam Date (IAT) | Late May / June 2027 | Computer-based, 3 hours |
| Answer Key & Result | June 2027 | Provisional key, then result |
| Counselling / Admission | June-July 2027 | Merit list + seat allotment across IISERs |
Cover all four sciences with confidence
IAT tests Biology, Chemistry, Maths, and Physics together. Super Tutor gives you chapter-wise practice and timed mocks across all four so no subject becomes a weak link.
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- Registration deadline: Apply within the March-May window; late windows are limited.
- Mind the negative marking: Practise eliminating options rather than blind guessing — IAT penalises wrong answers.
- Admission merit list: Track the post-result admission rounds across the IISERs and respond to allotments on time.
All dates are predicted based on the IISER admission body's recent patterns and are subject to change. Always verify on the official IISER admission portal. Last updated: June 2026.
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Frequently Asked Questions
When is the IISER 2027 (IAT) exam date?
Admission to the IISERs is through the IISER Aptitude Test (IAT), a computer-based test usually held around late May or early June. IAT 2027 is expected around late May / June 2027. The exact date is announced on the official admission portal, iiseradmission.in, a few months in advance.
What is the IISER IAT 2027 exam pattern?
IAT is a computer-based test covering all four science subjects — Biology, Chemistry, Mathematics, and Physics — typically with 15 questions in each (60 questions total). Based on recent patterns, each correct answer earns 4 marks and each wrong answer carries a 1-mark penalty, for 240 marks in 3 hours.
What do the IISERs offer?
The IISERs (Indian Institutes of Science Education and Research) offer a five-year BS-MS dual degree focused on research in the basic sciences. Admission through IAT is the main route. If you are aiming for a research career in pure sciences rather than engineering or medicine, the IISERs are a strong target.
When will IISER 2027 registration open?
Registration typically opens around March-April 2027 on iiseradmission.in and runs for a few weeks. You need your Class 12 details and documents. Apply within the window — there is usually a limited late window with an additional fee, if any.
Is there negative marking in IISER IAT 2027?
Yes. Based on recent patterns, IAT applies a 1-mark penalty for each wrong answer against 4 marks for a correct one. This means you should avoid blind guessing — attempt questions where you can reasonably eliminate options, and skip those you have no basis for.
Is Class 12 (all four subjects) needed for IISER 2027?
The IAT paper has sections in Biology, Chemistry, Mathematics, and Physics, but you typically attempt the subjects relevant to your background. Eligibility requires Class 12 in the science stream with the minimum marks specified in the admission brochure. Check the exact subject and marks requirements for that year.