Hello. I had submitted my application form. But during fee payment, the site expired. Can I have any solution to pay the fee and complete.

Students can create an IISER login id and password during registration. The details required to register for IISER are Name, Date of birth, gender, citizenship status,  mobile number, and email address.

No, IISER registration was over on April 13, 2026. Students were able to register for IAT 2026 from March 5 to April 13.

IAT user id is (application number / registration number). It is created during the IISER registration process. After the registration is over, user id and password are sent to the registered email address and mobile number. 

IISER answer key will be released on June 7, 2026. Candidates can download the answer key online. The answer key challenge window will open on June 9, 2026.

The IISER exam date is June 7, 2026. The exam will commence at 9 AM and continue till 12 PM. It is a computer-based test.