CAT Form Correction 2026: Check Last Date & How to Edit Details

Filling up the CAT 2026 application form correctly is very crucial as the IIM selection and admission process will depend on this form. If you make incorrect entries in the CAT form, you will have no second option to apply for full-time MBA programmes of the IIMs. Thus do not make factual errors or make course/college choices incorrectly. Check here how to edit CAT application form 2026 in case you need to.

CAT 2025 registration process

CAT 2026 Form Correction - The registration process for CAT 2026 exam started on August 3, 2026. IIM aspirants can fill up the CAT form at iimcat.ac.in website. Last date of CAT registration is September 15. The form correction window will open after that. But during the CAT form correction 2026, only a limited fields will be open for editing. So, it is critical to not make any error in the CAT 2026 registration form. 

Mentioning correct information in the CAT registration cum application form is very important as the details mentioned in the form is used to determine the candidature for IIM Personal Interview round. Yes, the CAT application form is also the application form for IIMs. You are required to mention IIM campus, course and interview city in the CAT 2026 form. In order, the fill the CAT application form correctly, candidates have to follow the guidelines set by the examination authority. For this, an official CAT 2026 registration guide has also been released by the authorities. It is the responsibility of the candidate to make sure they don't make error while entering details in the CAT 2026 form.

How to Avoid Error in CAT Application Form 2026?

To avoid any error while filling up the CAT exam registration cum application form, you must first of all, keep all the information ready with you. Keep your marksheets and documents by your side for cross checking the information to be filled. Also keep a scanned copy of your recent passport sized photo and your signature.

CAT Photo and Signature Dimension

• The photo should be of dimension 1200 pixels x 1200 pixels and in JPEG or JPG format.
• The file size should be not more than 80 KB.
• The dimensions of your signature should be 80mm X 35mm and the format should be JPEG or JPG format.
• The image should be clear with a minimum resolution of 150px/inch.

Before submitting the CAT 2026 registration form, cross check all the information entered. If you submit the form with errors, you will be left with only two options:

• Either fill the CAT application form again with new email ID and phone number and pay the application fee one more time.
• Or wait for the CAT application form correction window to open. But in this case, you will be allowed to edit only a few fields like percentage of marks scored, test centre, image, and signature.
• The window to edit CAT application forms is opened for the convenience of CAT aspirants, for a few days after the application process is officially over.

Tips to fill the CAT 2026 application form without errors

Listed below are some key tips to avoid making mistakes in the CAT application form 2026:

• Fill the CAT 2026 application form before the last date.
• Do not fill and submit the form in hurry. Checke every information before paying the fee
• Add academic details after cross checking it with the original documents
• Do not use a smart phone to fill the form. Use a laptop or a desktop.
• Use Internet Explorer, Mozilla Firefox and Google Chrome to fill the CAT form
• Use a recently clicked passport size photo
• Use your own and functional email ID and phone number to register for CAT 2026.
• Do not leave any field marked as mandatory empty.
• Make sure the CAT fee payment is successful and you have obtained acknowledgement.
• Keep a copy of the duly filled form and fee payment acknowledgement slip safe.

How to Edit Application Form Once Submitted?

During the CAT 2026 form correction process, candidates must make the changes if required. Information that can be edited in CAT form include photo, signature and selection of test cities. Candidates can make changes in their CAT 2026 application forms free of cost.

CAT 2026 Application Form Correction

During the CAT 2026 application form correction process, you will be required to follow the steps below:

• Visit iimcat.ac.in website
• Login with your user ID and password
• Go to your CAT application form
• Make required changes - upload new photo, signature or re-select test cities
• Save the form again

After the form application correction window closes, no request for changes in the CAT 2026 application form will be accepted. The CAT exam centre allotment will be based on final test city selection made during the form correction. The exam centre location will be mentioned in the CAT 2026 admit card  which will be issued on November 4, 2026.

Also Read:

• CAT eligibility criteria and reservation policy 2026
• Six check-points to ensure error free CAT 2026 registration
• Checklist of documents required to fill CAT 2026 application form
• List of CAT test cities 2026

CAT 2026 exam will be conducted on November 29, 2026. Test centre allotment, admit card issue will depend on your CAT application form. Not only that, but your MBA aspiration also depends on it. All the information furnished in the form will be taken into consideration for MBA admission in the CAT accepting colleges. Filling up the CAT application form correctly is also important as the IIM selection and admission process is dependent on this form. The information furnished in the CAT 2026 registration cum application form is the basis on which a candidate will be selected for IIMs' WAT/GD-PI round and/or final admission.