IISER IAT 2026 Registration Ends Tonight: Final Call for iiseradmission.in Applications
The deadline for IISER Aptitude Test (IAT) 2026 registration is April 13, 2026, at 11:55 PM. Eligible candidates must apply via iiseradmission.in for admission to premium BS and BS-MS dual degree programs. The exam is scheduled for June 7, 2026.
The clock is ticking for science aspirants across India. The Indian Institutes of Science Education and Research (IISERs) will officially close the registration portal for the IISER Aptitude Test (IAT) 2026 today, April 13, 2026, at 11:55 PM.
If you are aiming for a career in frontier research through the prestigious five-year BS-MS Dual Degree or the four-year BS programs, this is your final opportunity to submit your application.
Critical Deadlines You Cannot Miss
To ensure your candidacy, keep these dates pinned:
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Registration Deadline: April 13, 2026 (11:55 PM)
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Correction Window: April 16 to April 18, 2026
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Admit Card Release: May 24, 2026
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IAT 2026 Exam Date: June 7, 2026 (9:00 AM to 12:00 PM)
How to Apply for IISER IAT 2026: Step-by-Step
Avoid last-minute server crashes by following these steps immediately:
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Visit Official Portal: Go to iiseradmission.in.
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New Registration: Click on the "Apply Now - IAT 2026" link.
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Basic Details: Enter your name, date of birth, mobile number, and email ID.
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Verification: Use the "Reverify" button to ensure data accuracy.
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Fill Application: Complete the form with academic marksheets and preferences.
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Fee Payment: Pay the non-refundable fee and download your confirmation page.
Direct Link to Apply for IISER IAT 2026: iiseradmission.in
Application Fee Structure
The fee varies based on the candidate's category:
| Category | Registration Fee |
| General / EWS / OBC / OBC-NCL | 2,000 |
| SC / ST / PwD / Kashmiri Migrants | 1,000 |
| Foreign Nationals | 12,000 |
Why IAT 2026 is Your Golden Ticket
The IISERs (located in Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, and Tirupati) are India’s premier institutes for scientific research.
Expert Note: Admission to IISERs is now primarily through the IAT score. The exam consists of 60 questions (15 each from Physics, Chemistry, Maths, and Biology) totaling 240 marks. With +4 for correct answers and -1 for incorrect ones, precision is key.
Frequently Asked Questions (FAQs)
1. Can I apply for IAT 2026 if I did not have Biology in Class 12?
Yes. You must have at least three subjects among Physics, Chemistry, Mathematics, and Biology in your Class 12. However, the IAT paper includes all four subjects, so it is advised to attempt as many as possible to boost your rank.
2. What is the correction window for IISER 2026?
The correction window will be open from April 16 to April 18, 2026. During this time, registered candidates can rectify specific errors in their uploaded documents or personal details.
3. Is there an age limit for the IISER Aptitude Test?
Generally, there is no strict upper age limit, but candidates must have passed their Class 12 (or equivalent) exam in 2024, 2025, or 2026.
4. Which institutes accept IAT scores besides IISERs?
Besides the seven IISERs, the Indian Institute of Science (IISc) Bangalore and IIT Madras (for specific programs) also use IAT scores for their undergraduate admissions.
5. When will the IAT 2026 Answer Key be released?
The preliminary answer key is typically released on the same day as the examination (June 7, 2026), with an objection window following shortly after.