The IISER 2026 IAT (Indian Institutes of Science Education and Research Aptitude Test) registration is now open, with the application portal live since March 5, 2026, on the official website.
This computer-based entrance exam, scheduled for June 7, 2026, from 9:00 AM to 12:00 Noon IST, serves as the sole admission route for 5-year BS-MS dual degree programs and other science courses at the seven IISER campuses.
Eligible candidates can apply online at iiseradmission.in for admission to these prestigious research-oriented institutes.
IISER 2026 IAT Overview
The IISER Aptitude Test (IAT) 2026 is the key entrance exam for undergraduate science programs at IISERs.
| Particulars | Details |
|---|---|
| Exam Name | IISER Aptitude Test (IAT) 2026 |
| Conducting Authority | Indian Institutes of Science Education and Research (IISER) |
| Application Start Date | March 5, 2026 |
| Application Last Date | April 13, 2026 (11:55 PM IST) |
| Admit Card Release | May 24, 2026 |
| Exam Date | June 7, 2026 |
| Exam Time | 9:00 AM – 12:00 Noon IST |
| Answer Key Release | June 7, 2026 (provisional) |
| Official Website | iiseradmission.in |
IISER 2026 IAT Important Dates
Follow this timeline for key events in the IISER 2026 IAT admission process:
| Event | Date |
|---|---|
| Application Portal Opens | March 5, 2026 |
| Application Portal Closes | April 13, 2026 (11:55 PM IST) |
| Application Form Correction Window | April 16 – April 18, 2026 |
| Hall Ticket Release | May 24, 2026 |
| IISER Aptitude Test (IAT) 2026 | June 7, 2026 |
| Answer Key Display | June 7, 2026 |
| Candidate Response Form & Objection Portal Opens | June 9, 2026 |
| Objection Portal Closes | June 13, 2026 |
| Selective Document Upload Window | June 13 – June 21, 2026 |
| Last Date for Document Upload | June 21, 2026 |
IISER 2026 IAT Application Fee
Pay the non-refundable fee online during application submission on the official portal.
| Category | Application Fee |
|---|---|
| General / EWS / OBC / OBC-NCL | ₹2,000 |
| SC / ST / PwD / Kashmiri Migrants | ₹1,000 |
| Foreign Nationals | ₹12,000 |
Important Notes:
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The fee is non-refundable for all categories.
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Applications without successful payment will not be considered.
IISER 2026 Seat Acceptance Fee (SAF)
Candidates who receive an admission offer must pay the Seat Acceptance Fee to confirm their seat. This amount is later adjusted against the first semester fee.
| Category | Seat Acceptance Fee |
|---|---|
| General / EWS / OBC / OBC-NCL / PwD / KM | ₹35,000 |
| SC / ST | ₹17,500 |
Important Notes:
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Pay SAF within the specified deadline via the candidate portal after receiving an offer.
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Non-payment leads to cancellation of the offer and exclusion from further rounds.
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The SAF is adjustable against semester fees at the allotted IISER.
IISER 2026 IAT Admit Card
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The hall ticket for IISER 2026 IAT will be available for download starting May 24, 2026, from the official website. Log in with your credentials to access it.
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The admit card includes candidate details, exam centre address, reporting time, exam schedule (9:00 AM – 12:00 Noon IST), and exam-day guidelines.
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Carry a printed copy along with a valid photo ID to the exam centre.
IISER 2026 IAT Answer Key and Objection Window
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The provisional answer key will be released on June 7, 2026, post-exam. Candidates can view it, check responses, and estimate scores.
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Objections can be raised online from June 9 to June 13, 2026, through the portal (challenge fee may apply per question). Late or unsubstantiated objections are typically not entertained.
How to Apply for IISER 2026 IAT Online?
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Go to the official portal: iiseradmission.in.
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Click on the IISER IAT 2026 Apply Online or registration link.
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Register with a valid email ID and mobile number; create a password.
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Log in and complete the application form with personal, academic, and centre preferences.
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Upload scanned documents (photo, signature, category certificate, etc.) in specified format/size.
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Pay the application fee online via debit/credit card, UPI, or net banking.
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Review details, submit the form, and download the confirmation page and receipt.
IISER 2026 Admission Process
The process for IISER 2026 IAT is fully online and centralised:
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Register and submit the application form.
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Download the admit card.
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Appear for the IAT exam on June 7, 2026.
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View provisional answer key and submit objections if needed.
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Check final results, score, and rank.
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Participate in counselling, choice filling, and seat allocation.
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Receive offer(s) based on merit, preferences, and availability.
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Pay SAF to accept the seat and complete verification at the allotted IISER.
