The Indian Institutes of Science Education and Research, IISER has made the IISER Aptitude Test 2026 timeline public, the good news particularly for the science aspirants in India. According to the released timeline, the IISER registration date has been set for March 5, 2026, marking the beginning of the application process for one of India’s premier science education institutions.
IISER Aptitude Test 2026- Dates to Remember
Those seeking to pursue their undergraduate education at the IISER should follow closely on these tracks. The admissions cycle begins with the release date of IISER application 2026 on March 5. The registration for the exam will close on April 13, 2026, so the aspirants have nearly a month to register for this elite science entrance exam.
After the April 13 deadline for submission of applications, there will be a grace period, April 13 to 15 for corrections. The IISER Aptitude Test admit cards will be available from 24 May 2026.
| Event | Date(s) |
| Release of IISER Application Form | March 5, 2026 |
| Last Date for IISER IAT Exam Registration | April 13, 2026 |
| IISER IAT Application Correction Window | April 13 – April 15, 2026 |
| IISER IAT Admit Card (Hall Ticket) Release | May 24, 2026 |
| IISER Aptitude Test (IAT) Examination | June 7, 2026 |
Application Process and Fee Structure
The IISER admission portal at iiseradmission.in enables interested candidates to begin their application process by completing their application forms. The fee structure varies across different categories which enables students from various backgrounds to access the system.
| Category | Application Fee |
| General | ₹2,000 |
| EWS (Economically Weaker Section) | ₹2,000 |
| OBC / OBC-NCL | ₹2,000 |
| SC / ST | ₹1,000 |
| Persons with Disabilities (PwD) | ₹1,000 |
| Kashmiri Migrants | ₹1,000 |
| Kashmiri Pandits / Kashmiri Hindu Families (Non-Migrant) | ₹1,000 |
| Foreign National Candidates | ₹12,000 |
Know the IISER Aptitude Test Pattern
IISER Aptitude Test Format requires students to learn about its structure. The IISER Aptitude Test 2026 will take place on June 7, 2026, at 9 AM. The computer-based exam will take place at various locations throughout India which allows candidates from throughout the country to take the test.
- Total questions: 60 multiple-choice questions
- Subjects covered: Biology, Chemistry, Mathematics, Physics
- Questions per subject: 15 each
- Total duration: 180 minutes (3 hours)
- Question format: Multiple options, one correct answer
- Skills tested: Conceptual understanding and subject knowledge
- Maximum marks: 240
- Ranking basis: Total marks obtained
- Rank list applicable for: IISER Aptitude Test 2026
Also Read: CUET UG 2026 Registration
Getting the right start
With the IISER registration date approaching on March 5, prospective applicants should begin gathering necessary documents and ensuring their eligibility criteria are met. The one-month registration period will allow the applicants to submit their application carefully and avoid hasty submission.
Correction window is a crucial safety net which gives candidates chance to correct any mistakes. But you should try to check the applications carefully before you first submit them, so that you won’t have to make so many corrections.
As Indian premier natural-science institution, IISER attracts bright minds who are passionate about science research and innovation. The structured admission process ensures fairness and transparency, giving every deserving candidate an equal opportunity to showcase their potential through the aptitude test.
Also read: NEET UG 2026 Registration Now Open
I am Samik Hazra, Senior Content Writer at Vidyamandir Classes, specializing in education-focused content. With a strong command over academic and exam-preparation domains, he creates insightful, student-centric articles that simplify complex topics and add value for aspirants.
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