IISER IAT 2026 Selective Document Upload Window Open; Check Last Date to Submit

The Indian Institute of Science Education and Research (IISER) Berhampur has opened the IISER Aptitude Test (IAT) 2026 selective document upload window on the official portal at iiseradmission.in. Candidates have until 11:55 PM IST on June 21, 2026, to submit pending documents online.

The window is open to candidates who appeared for IAT 2026. Aspirants must use their registered login credentials to access the upload portal. The form allows candidates to submit Class 12 marksheets and category certificates issued after the application deadline.

IAT 2026 was conducted on June 7, 2026, in a single shift. IISER Berhampur released the provisional answer key on the same day. The objection window for the answer key closed on June 13, 2026.

What Documents Can Be Uploaded on the IISER Portal?

The selective upload window accepts only a defined set of documents. Candidates cannot edit other application details during this period.

• Class 12 board examination marksheet or equivalent certificate.
• GEN-EWS certificate issued on or after April 1, 2026.
• OBC-NCL certificate issued on or after April 1, 2026.

Candidates without their Class 12 marksheet have one alternative option. They may upload a signed declaration form instead of the marksheet. The form is titled the Declaration by the Candidate in Lieu of Eligibility Exam Certificate or Marksheet.

IISER IAT 2026 Important Dates

How to Upload Documents on iiseradmission.in?

Aspirants should follow these steps to complete the upload before the deadline.

1. Visit the official IISER admission portal at iiseradmission.in.
2. Click on the candidate login link on the homepage.
3. Enter the registered application number and password.
4. Open the selective document upload section in the dashboard.
5. Choose the document type from the drop-down list.
6. Upload the scanned copy in the prescribed file format.
7. Review the preview once and confirm the final submission.

Candidates should retain a copy of the upload confirmation. The portal does not allow edits once a document is submitted. Re-uploads may not be permitted after the June 21 deadline.

Action Plan for Candidates

1. Log in to iiseradmission.in well before June 21, 2026.
2. Keep clean scans of the Class 12 marksheet ready in advance.
3. Check the issue date on EWS or OBC-NCL certificates carefully.
4. Upload files only in the format and size specified.
5. Save the confirmation page after each successful submission.

Also Read: 

• Top Colleges in India Accepting IISER Based on 2026 Ranking
• IISER Cutoff 2026: Check Expected Cutoff, Previous Years’ Cutoff, and Category-wise Cutoff
• IISER IAT 2026 Low Cutoff Institutes: Round 1 Closing Scores Compared
• IISER IAT 2026: 150 Marks Admission Chances and Alternatives