CAT Form Correction 2026: Dates & Steps to Modify Form

The CAT 2026 form correction window has closed now, allowing registered candidates to review and edit the permitted details in their application form. It started on 5 October 2026, 10:00 AM and ended on 6 October 2026 at 5 PM.

• As per the CAT 2026 press release, candidates will be able to modify selected fields after the conclusion of CAT registration 2026, such as Photograph, Signature, and Test City Preferences (if required) through the CAT form edit window.
• Not all fields in the CAT application form are permitted for modification through CAT application edit. Candidates will not be allowed to edit certain fields after final submission, such as the candidate's name, date of birth, mobile number, email ID, nationality, PwD status, and category.
• Candidate’s category cannot be changed after registration through the CAT correction window 2026. Hence, the applicants need to verify all reservation-related details before submitting the application and paying the CAT registration fee.

CAT Form Correction Dates 2026

CAT form correction dates 2026 have not been specified in the CAT 2026 Information Bulletin. However, based on previous years' trends, it can be anticipated that the CAT application form correction 2026 dates will fall in the last week of September 2026 or the first week of October 2026. The CAT form correction last date 2026 will most likely be in the first or second week of October 2026. The official CAT exam form correction 2026 dates will be provided on the official CAT website soon.

Check CAT Exam Dates 2026

Can I Edit CAT Application Form 2026?

Candidates can edit their CAT application forms 2026 through the CAT form correction window 2026 that will be made available on the CAT official website. As per the CAT 2026 press release, only the candidate’s Photograph, Signature, and Test City Preferences can be edited through the CAT form edit window. During the CAT registration 2026, candidates must ensure that their name, date of birth, and category match their official documents as they cannot be edited later.

How to Edit CAT Form 2026?

CAT Application Form Correction 2026 online will provide candidates with a final opportunity to correct any errors in selected fields in their submitted forms only for a limited period. No further requests for CAT exam form correction 2026 will be entertained after the online correction facility closes. Candidates can edit their application forms by following the steps mentioned below once the correction window is activated.

Step 1: Visit the official IIM CAT 2026 official website at iimcat.ac.in.

Step 2: Click on the “Existing User” tab.

Step 3: Enter the login credentials, such as the registered User ID and Password, and click on the “Login” tab.

Step 4: Open the submitted CAT 2026 application form and click on the “Edit Application Form” or correction link available on the dashboard.

Step 5: Modify only the photograph and signature or upload a fresh photograph and signature in the prescribed format, and make changes in the test city preference in the order of priority.

Step 6: Carefully review all the corrections or modifications and submit the corrected application form.

Step 7: Finally, download the updated CAT registration form 2026 and take a printout of the same for future reference.

Most Common Mistakes in CAT Application Form 2026

CAT Application Form Correction 2026 window will allow rectification only in selected fields in the CAT exam form 2026, which makes it crucial for applicants to verify every detail before submitting the CAT application form 2026. Through the CAT exam form correction 2026 window, candidates must correct incorrect academic information, replace already-uploaded blurred or invalid photographs and signatures, and modify communication details.

The details entered in the CAT application form 2026 must match the supporting documents submitted during document verification and admission. Some fields cannot be edited as they are permanently locked once the application form is submitted and payment is completed. Based on previous years' trends, the mistakes found most frequently in CAT application forms are provided below along with their recommended corrective action.

1. Selecting the Incorrect category (General/ OBC-NCL/ SC/ ST/ EWS) may create issues during identity verification. The category of the candidate cannot be changed after registration, as per the CAT 2026 Information Bulletin. Hence, candidates must submit the required Caste certificate issued by the competent authority during CAT registration 2026.
2. Entering the wrong Date of Birth, where the day and month do not match the ID proof, will prohibit the candidate from entering the CAT exam centre. This field cannot be edited after application form submission and fee payment.
3. Entering the incorrect Name where the spelling differs from the Class 10 marksheet or government ID may lead to identity mismatch at the CAT exam centre or during the IIM interview. A candidate’s name cannot be changed after registration, as per the CAT 2026 Information Bulletin.
4. Candidates may also provide the wrong Mobile Number or Email, for which they may miss admit card and result notifications from IIM CAT. These fields cannot be edited after CAT registration 2026.
5. Uploading a blurred or invalid Photograph may create issues during identity verification. Hence, a candidate must upload a clear passport-size photograph in the prescribed format. This field is editable after application fee payment, as per the CAT 2026 Information Bulletin.
6. Uploading an incorrect Signature may lead to a mismatch during identity verification. Candidates must upload a fresh scanned signature in the JPEG/JPG/PNG format through the correction window. This field can be edited after application fee payment, as per the CAT 2026 Information Bulletin.
7. If a candidate enters incorrect Exam City Preference, like selecting a city far from his/her actual location, it may lead to long and expensive travel on the CAT exam day. This field is editable after application fee payment through the CAT exam form correction 2026 window. He/she can select up to 5 different test cities in the order of preference.
8. Entering the wrong academic percentage where scores are rounded up incorrectly, or aggregate is confused with best-of-subjects score, may lead to academic discrepancies during IIM verification, and affect shortlisting by the IIMs. As this field is non-editable, candidates must enter the appropriate academic details of Class 10, Class 12 & Graduation.
9. Incorrect Professional Experience, including overstating of months or inaccurate employer details, is also provided by some candidates, which affects evaluation of the candidate profile during IIM WAT-PI screening. This field cannot be edited after CAT registration 2026, and hence candidates must update accurate work experience details, as of July 31, 2026, during the correction window.
10. Uploading incorrect certificates may lead to verification issues during admission. This field is non-editable after CAT application form 2026 submission and fee payment.
11. Candidates may enter the wrong communication address while filling out the CAT application form 2026. This field cannot be edited through the form correction window.

Editable Fields in CAT Form 2026

Editable fields in CAT form 2026 include Photograph, Signature, and Test City Preferences only, as per the CAT 2026 Information Bulletin. The photograph can be updated if the original photograph uploaded by the candidate was blurry or was not clicked on a non-white background. The candidate’s signature can be edited if it was difficult or impossible to read or not cropped correctly. CAT exam city preferences can be edited if the candidate’s priorities for the test city have changed. The candidate can choose up to 5 exam cities in the order of his/her latest preference. The final list of editable fields through the CAT Application Form Correction 2026 is provided below.

Non-Editable Fields in CAT Form 2026

Non-Editable fields in CAT Form 2026 include Academic Details, Work Experience Details, Communication Address, uploaded Certificates, Graduation Marks, and Professional Qualification Details, as per the CAT 2026 press release. These details will be locked immediately after final submission of the CAT 2026 application form. Hence, candidates must verify that the information provided in these fields is accurate before final submission.

Check:

• CAT Syllabus 2026
• CAT Exam Pattern 2026

CAT Application Form Correction 2026 FAQs