IAT 2026 Application Form Correction (Link Active): Know Editable and Non Editable Fields Here

Indian Institutes of Science Education and Research Entrance Exam 2026 ( IISER Entrance Exam )

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IISER Aptitude Test 2026 Hall Ticket

24 May '26 - 7 Jun '26

Updated on Apr 16, 2026 11:42 IST
IISER Exam 2026 Application Correction Window is open for rectifying the incorrect details filled by the candidates. IISER Exam Application Correction Form 2026 is available for the candidates to edit the details on April 16, 2026. This Shiksha article provides information on IISER Exam application correction.

IISER Exam 2026 Application Correction Window is open for rectifying the incorrect details filled by the candidates. IISER Exam Application Correction Form 2026 is available for the candidates to edit the details on April 16, 2026. This Shiksha article provides the IISER Exam application correction information.

IISER Exam Application Form Correction 2026

IISER 2026 form correction process has started on April 16. The form correction link is updated on this page. Candidates must read the instructions carefully before editing the IISER application form. Complete change to the filled form is not allowed. Details like name, dob, gender, citizenship, mobile number, and email are non-editable. The last date for IAT form correction is April 18, 2026. Registered candidates can appear for IISER Aptitude Test on June 7, 2026.  Check the page to know about the IAT application form correction 2026 in detail.

Also Read: IISER Application Correction 2026 Link Activated; Know how to edit

Table of contents
  • IISER Entrance Exam 2026 Events
  • Also Read: IISER 2026 application fee for GEN, OBC, EWS, SC, and ST
  • IISER Exam 2026 Application Correction Window: How to Modify Details
  • IISER 2026 Exam Highlights
  • IISER Exam 2026 Application Form: Editable and Non-Editable Fields
  • IISER Exam 2026 Application Correction Window: Things to Remember

IISER Entrance Exam 2026 Events

The authority has announced IISER entrance exam 2026 dates online. Candidates can check the IAT important dates 2026 to know the schedule for the events like registration, entrance exam, admit card, and result. The exam date for IISER 2026 is updated below.

IISER Entrance Exam 2026 Events IISER 2026 Tentative Dates
IISER Entrance Exam 2026 Application Form Start Date March 5, 2026
IISER Entrance Exam 2026 Application Form End Date April 13, 2026
IISER Entrance Exam 2026 Application Form Correction Window April 16 to 18, 2026
IISER Entrance Exam 2026 Admit Card May 24, 2026
IISER Entrance Exam Date 2026 June 7, 2026
IISER Entrance Exam 2026 Answer Key  Same day after the successful conduct of exam

Also Read: IISER 2026 application fee for GEN, OBC, EWS, SC, and ST

IISER Exam 2026 Application Correction Window: How to Modify Details

Only those candidates who have submitted the application form and paid the requisite application fee will be eligible to make changes in the application form. If candidates made any mistakes in IISER Exam 2026 registration forms, they can correct them in the correction window. Here we have provided process to correct the application form.

  • Go to IISER Exam 2026 website, iiseradmission.in 

  • Click on IAT Application form correction link

  • Then click on the login button & enter user id and password.

  •  After login you can change specific details in IISER Exam 2026 Application form.

  •  Save the changes and take the printout of the form for future uses.

Also Read: How to fill IAT 2026 application form

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IISER 2026 Exam Highlights

The following table provides the tentative important information and highlights of the IISER Aptitude Test 2026.

Particulars

Details

Exam Name

IISER Aptitude Test

Conducting Body

Indian Institute of Science Education and Research

Exam Level

Undergraduate

Exam Frequency

Once a year

Exam Mode

Online/Computer-based Test (CBT)

Total Registrations

Two lakh (approximate number)

Courses Offered through IISER Aptitude Test

BS-MS dual degree programme/ BS (IISER Bhopal) degree

Application Fee

Gen/OBC/OBC-NCL/EWS - INR 2,000

SC/ST/KM/PwD - INR 1,000

Exam Duration

3 Hours

Exam Medium

English and Hindi

Total Marks of IISER

240 Marks

Total Questions

60

Marking Scheme

+4 for each correct answer

-1 for each wrong answer

Colleges Accepting IISER Aptitude Test Scores

All IISER campuses in India

Official Website

http://www.iiseradmission.in/

Also Read: IISER eligibility criteria 2026

IISER Exam 2026 Application Form: Editable and Non-Editable Fields

The IISER Entrance Exam 2026 modification window allows candidates to make changes to their personal information, educational qualification details, exam centre preferences, and other relevant particulars. The aim is to ensure that all applications are accurate and complete before the final processing stage.

IISER Exam 2026 Form Correction: Any one of the fields can be corrected

The following section brings the list of fields out of which only one can be edited:

  • Candidate Name or
  • Father's Name or
  • Mother's Name 

IISER Exam 2025 Form Correction: All the fields can be corrected

Candidates are allowed to change all the following fields:

  • Class 10/ equivalent details
  • Class 12/ equivalent details
  • Graduation Details
  • Post Graduation Details
  • Date of Birth
  • Gender
  • Category
  • Sub-category / PwBD
  • Test Paper Code

IISER Exam 2026 Form Correction: Details can't be corrected

Following are the uneditable fields on the IISER Entrance Exam 2026 application form.

  • Application number
  • Date of application submission
  • Status of application (submitted, incomplete, pending, etc.)
  • Application fee payment status
  • Candidate's photograph
  • Candidate's Signature.
  •  Mobile Number
  • E-Mail address
  • Address (Permanent and Present)

IISER Exam 2026 Application Correction Window: Things to Remember

Candidates need to remember the following things:

  • The option to edit the Subject / Test / Programme / Course will continue to be available till the correction period. 
  • If there is an impact on the fee, then the additional fee will be charged as applicable. 
  • Correction in these fields will be applicable only after payment of an additional fee if any. 
  • No fee will be refunded for the reduction of Test Papers.
  • The only one-time correction will be allowed to the candidate, i.e. once the corrections are done and submitted, the form shall be frozen. 

Read More:

IISER Entrance Exam 2026 Application Form: Documents Required

How to Prepare for IISER Entrance Exam: Prep Tips and Guidelines 

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About the Author
Vikash Kumar is a leading subject matter expert, specializing in K–12 education and competitive exam preparation for JEE Mains. With a BTech degree and over 10 years of experience in creating high quality content fo Read Full Bio
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Answered a month ago

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.

V

Vikash Kumar Vishwakarma

Contributor-Level 10

Answered a month ago

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.

V

Vikash Kumar Vishwakarma

Contributor-Level 10

Answered 2 months ago

IISER score 200 or above is a good marks. It can help to get admission to IISER Pune and IISc Bangalore. Candidates must have a good conceptual knowledge, give priority to all four subjects. Prepare for the exam according to the exam syllabus and take mock test to score above 200.

V

Vikash Kumar Vishwakarma

Contributor-Level 10

Answered 2 months ago

Based on previous year analysis, IAT exam is moderately difficult. It requires strong conceptual knowledge. Students who have prepared properly for exam can easily score good marks.

V

Vikash Kumar Vishwakarma

Contributor-Level 10

Answered 2 months ago

It is quite difficult for the GEN / OBC category to get admission to IISER with 50 marks. Even the reserved category students have less chance in the later counelling round for admission. To secure admission, students must score above 150 marks.

V

Vikash Kumar Vishwakarma

Contributor-Level 10

Answered 2 months ago

IISER exam is considered of moderate difficulty level. Majority of students finds Physics, and Mathematics challenging. PCM students may find biology tough while PCB students might find Mathematics tough. However, the difficulty level of IISER compared to JEE Main and Advanced is moderate to easy.

V

Vikash Kumar Vishwakarma

Contributor-Level 10

Answered 2 months ago

The last date to apply for IISER 2026 was April 13, 2026. IAT application form was available on the website, iiseradmission.in. 

V

Vikash Kumar Vishwakarma

Contributor-Level 10

Answered 2 months ago

IISER 2026 application was available from March 5 to April 13 online at iiseradmission.in. IISER application process is registration, form filling, and payment of fees.

V

Vikash Kumar Vishwakarma

Contributor-Level 10

Answered 2 months ago

IISER Berhampur released the application form for IISER 2026 on March 5, 2026. The registration link is updated on the website, iiseradmission.in.

V

Vikash Kumar Vishwakarma

Contributor-Level 10

Answered 2 months ago

IISER 2026 application fee is updated online. The application fee for IISER 2026 is Rs. 2000 (General, EWS, OBC, and OBC-NCL). For other categories, the fee is Rs. 1000.

V

Vikash Kumar Vishwakarma

Contributor-Level 10