CAT Form Mistakes That Can Lead to Rejection

The CAT 2026 application form is expected to be released in August 2026. Filling out the form may seem straightforward. But even small mistakes can create problems during the admission process.

Candidates are required to enter accurate details, upload documents in the prescribed format, and complete the application before the deadline.

Incorrect information, invalid documents, or poor-quality uploads may create issues during document verification.

This may even result in the rejection of the application if the required criteria are not met. Therefore, candidates should carefully review every detail before submitting the form.

This article explains the common CAT form mistakes, how to avoid them, and the correct specifications for uploading photographs and signatures.

Common Errors to Avoid While Filling the CAT Application Form

Candidates should carefully review the entire application before final submission. The most common mistakes made during CAT registration include:

• Wrong spelling in personal details
• Incorrect academic marks entry
• Uploading an invalid category certificate
• Uploading a blurry photograph or signature
• Selecting the wrong exam city preference
• Using an inactive email ID or mobile number

CAT Form Mistakes That Can Lead to Rejection

Even a minor error may lead to rejection of applications or create issues during future admission stages.

Below are the most common mistakes candidates should avoid while filling out the CAT 2026 application form.

CAT Form Filling Mistake 1: Wrong Spelling in Personal Details

The personal information entered in the CAT application form should exactly match the details mentioned in the official academic documents.

Incorrect spelling or mismatched details may lead to rejection of applications. Candidates should carefully verify the following things:

• Candidate’s name
• Father’s/Guardian’s name
• Mother’s/Guardian’s name
• Date of birth
• Gender
• Nationality

CAT Form Filling Mistake 2: Incorrect Academic Marks Entry

Academic information should always be entered exactly as mentioned in the official marksheets.

Entering incorrect percentages, CGPA, passing year, or qualification details can create discrepancies during document verification. Candidates should carefully verify the following things:

• Class 10 marks
• Class 12 marks
• Graduation marks
• Postgraduate details (if applicable)
• Professional qualification details (if applicable)

CAT Form Filling Mistake 3: Uploading an Invalid Category Certificate

Candidates applying under the EWS, NC-OBC, SC, or ST categories should upload a valid category certificate. Uploading an incorrect or invalid certificate may affect category benefits during admission.

Before uploading, ensure the following things:

• The certificate is uploaded in PDF format.
• The certificate is valid.
• Certificate details entered in the application are accurate.

CAT Form Filling Mistake 4: Uploading a Blurry Photograph or Signature

One of the most common mistakes during CAT registration is uploading photographs or signatures that do not meet the prescribed specifications.

Blurred, cropped, or unclear images may create issues during verification.

Passport Size Photograph Specifications

Candidates should upload a recent passport-size photograph with the following specifications:

• File format: .jpg or .jpeg
• Maximum file size: 80 KB
• Dimensions: 1200 × 1200 pixels
• Minimum resolution: 150 px/inch
• Photograph should not be older than 6 months
• White background is mandatory
• The image should be clear and properly visible

Signature Specifications

The scanned signature should meet the following requirements:

• File format: .jpg or .jpeg
• Maximum file size: 80 KB
• Dimensions: 80 mm × 35 mm
• Minimum resolution: 150 px/inch
• The signature should be clearly visible and properly scanned.

CAT Form Filling Mistake 5: Choosing the Wrong Exam City Preference

Candidates should carefully select their preferred test cities while filling the CAT application form. Although a correction window is generally provided for limited fields. 

However, candidates should avoid relying on it and select the correct preferences during registration itself. Before submitting the application, they should ensure the following things:

• Review all selected test cities.
• Select preferences carefully.
• Verify the choices before final submission.

CAT Form Filling Mistake 6: Using an Inactive Email ID or Mobile Number

The registered email ID and mobile number are used throughout the CAT application and admission process. Using an inactive email address or mobile number may result in missing important notifications.

Candidates receive important updates related to:

• User ID and Password
• OTP verification
• Application confirmation
• Admit card release
• Official announcements

Tips to Avoid Mistakes in the CAT Application Form

A few simple precautions can help candidates submit an error-free CAT application.

• Keep all documents ready before starting the application.
• Enter details exactly as mentioned in the official documents.
• Double-check academic marks before submission.
• Upload photographs and signatures in the prescribed format.
• Use an active email ID and mobile number.
• Verify category details carefully.
• Review the complete application before clicking the Submit button.
• Avoid waiting until the last day to complete registration.

Can You Edit the CAT Application Form After Submission?

After the CAT 2026 registration window closes, a limited application correction window is generally provided. Candidates who have successfully submitted the application and paid the registration fee are usually allowed to edit only a few fields, such as:

• Photograph
• Signature
• Test city preferences

Other details generally cannot be modified after submission. Therefore, candidates should ensure that all information is accurate before submitting the form.

Conclusion

Most mistakes in the CAT application form are easily avoidable if candidates prepare their documents in advance. They should carefully verify every detail before submission.

Paying attention to personal information, academic records, uploaded documents, and contact details can help them avoid rejection of applications. They should aim to submit a complete and error-free application on the first attempt.

Once your registration is complete, the next step is focused preparation.

MBA KARO CAT Online Coaching provides expert mentorship, structured study plans, comprehensive mock tests, and detailed performance analysis to help aspirants strengthen their preparation and achieve a high percentile in CAT 2026.