Application Portal Opens Thursday, March 5, 2026
Application Portal Closes Monday, April 13, 2026, 11:55 PM IST
Corrections in Application Forms Thursday, April 16, 2026, 11:00 AM IST -
Saturday, April 18, 2026, 11:55 PM IST
Release of Hall Tickets Sunday, May 24, 2026
IISER Aptitude Test (IAT) 2026 Sunday, June 7 2026 (9:00 AM to 12:00 Noon IST)
Answer Key Display June 7, 2026
Candidate Response form upload & Portal opens for filing Objections June 9, 2026
Portal closes for filing Objections June 13, 2026
Windows for Selective Information/Document Upload in Application Form June 13, 2026 - June 21, 2026
Last date for Selective Information / Document upload in Application Form June 21, 2026
Release of Final Answer Key June 29, 2026
Declaration of IAT 2026 Result June 29, 2026
Registration for Counselling Process (filling up of IISER Academic Programme Preference Form) July 2, 2026, 5:00 PM IST - July 9, 2026, 5:00 PM IST
*Tentative Schedule of Counselling/Admission Offers for IISER Admissions 2026
Round 01 July 24, 2026, 5:00 PM IST - July 28, 2026, 5:00 PM IST
Round 02 August 01, 2026, 5:00 PM IST - August 05, 2026, 5:00 PM IST
Round 03 August 10, 2026, 5:00 PM IST - August 13, 2026, 5:00 PM IST
Round 04 August 18, 2026, 12:00 PM IST - August 20, 2026, 5:00 PM IST
Round 05 August 24, 2026, 12:00 PM IST - August 26, 2026, 5:00 PM IST
Round 06 August 28, 2026, 5:00 PM IST - August 30, 2026, 5:00 PM IST
Round 07 September 01, 2026, 5:00 PM IST - September 03, 2026, 5:00 PM IST
Round 08 September 05, 2026, 5:00 PM IST - September 07, 2026, 5:00 PM IST
Round 09 September 09, 2026, 5:00 PM IST - September 11, 2026, 5:00 PM IST


Fee details are here