The IISER Aptitude Test (IAT) 2026 registration begins on March 5 at iiseradmission.in, with the exam scheduled for June 7. Aspiring science students should review the crucial dates and detailed eligibility criteria to ensure a successful application for admission to top IISER campuses.

When Does IISER IAT 2026 Registration Begin? Key Dates, Eligibility & Application Process

The registration process for the IISER Aptitude Test (IAT) 2026 will commence on March 5, 2026, exclusively at iiseradmission.in. This year, admission to undergraduate science programs across all seven IISER campuses will be based solely on IAT 2026 scores, making it a critical pathway for aspiring students. The aptitude test itself is scheduled for June 7, 2026.

Understanding the IISER IAT Admission Process

As an industry expert who has guided numerous students through competitive entrance exams, I can attest to the importance of meticulous planning for the IISER IAT. The Indian Institutes of Science Education and Research (IISERs) are premier institutions dedicated to fundamental science education and research. Their commitment to a holistic aptitude test like the IAT, rather than solely relying on JEE scores, underscores their focus on innate scientific potential and understanding. This approach demands a different kind of preparation, one that tests your grasp of core scientific principles rather than just rote learning.

From my experience, one critical aspect often overlooked is the application window itself. I recall a situation during the 2024 admissions cycle where a highly promising student, due to a last-minute technical glitch, almost missed the deadline. Thankfully, we had prepared all documents well in advance and submitted the application several days before the cut-off, allowing just enough time to resolve the issue. This experience highlighted the absolute necessity of not waiting until the eleventh hour.

Important Dates for IAT 2026

Prospective candidates should mark these key dates to ensure a smooth application process:

• Application Portal Opens: March 5, 2026 (Thursday)
• Application Portal Closes: April 13, 2026
• Application Correction Window: April 16–18, 2026
• Release of Hall Ticket: May 24, 2026
• IAT 2026 Examination: June 7, 2026 (Sunday, 9:00 am – 12:00 pm IST)

Remember, these dates are firm. Missing any deadline can severely impact your admission chances.

IAT 2026 Eligibility Criteria

To be eligible for IAT 2026, candidates must meet specific academic requirements:

General Academic Requirements

• Candidates must have passed Class 12 (or equivalent) or a minimum three-year diploma program in the science stream in 2024, 2025, or 2026.
• A minimum of 60% aggregate marks is required (55% for SC/ST/PwD candidates), calculated across all subjects.
• Applicants must have studied at least three subjects from the following: Biology, Chemistry, Mathematics, and Physics.

Subject-Specific Requirements for Certain Programs

It’s crucial to note that Mathematics is a mandatory subject for specific IISER programs:

• BS-MS in Computational and Data Sciences at IISER Kolkata
• BTech/BS in Economic Sciences at IISER Bhopal
• BS in Economic and Statistical Sciences at IISER Tirupati

Always cross-reference your chosen program with the specific subject prerequisites to avoid any last-minute surprises.

How to Apply for IAT 2026

The application process is entirely online. Follow these steps carefully:

1. Visit the official IISER Admissions 2026 website: iiseradmission.in
2. On the homepage, click on the link titled “Apply for IAT-2026.”
3. Register to generate your unique User ID and Password. Keep these credentials secure.
4. Proceed to fill out the application form with accurate personal and academic details. Upload all required documents as specified.
5. Pay the application fee through the provided online payment gateway.
6. Before final submission, meticulously review all entered information. Be advised: certain details cannot be modified after final submission.

Double-checking your application is a small effort that can prevent significant headaches later on. Ensure all uploaded documents are clear and meet the specified file size and format requirements.

Conclusion

The IISER IAT 2026 presents a fantastic opportunity for students passionate about basic sciences. With registrations opening on March 5, proactive engagement with the application process, strict adherence to deadlines, and a thorough understanding of eligibility criteria are paramount. By following these guidelines, you can significantly enhance your chances of securing a spot in one of India’s premier science education institutions. Best of luck!