It’s the last day of CAT 2026 registration. You have completed almost every section of the application form. Just when you’re about to submit it, the portal rejects your photograph because of the wrong file size. Then you realize your category certificate isn’t scanned properly, and your graduation marks are not readily available.

Sounds stressful, right?

Every year, thousands of MBA aspirants face such last-minute issues. The easiest way to avoid this is by keeping all your CAT 2026 registration documents ready before you begin the application process.

In this guide, you’ll find the complete list of documents required for CAT 2026 registration, upload specifications, and a handy checklist to ensure a smooth registration process.

Why Keeping CAT 2026 Registration Documents Ready Is Important

The CAT application process is entirely online. During registration, candidates must upload several documents in the prescribed format.

Keeping these documents ready helps you:

• Complete the application quickly
• Avoid upload errors
• Prevent last-minute panic
• Reduce chances of incorrect information
• Submit the application without delays

Complete List of Documents Required for CAT 2026 Registration

Below is the complete CAT 2026 registration document checklist every candidate should prepare.

1. Passport-Size Photograph

A recent passport-size colour photograph is mandatory.

Ensure that:

• The photograph is recent (preferably taken within the last six months)
• Plain white or light background
• Face should be clearly visible
• No sunglasses or heavy filters
• Save in JPG/JPEG format
• Follow the file size and resolution prescribed in the CAT notification before uploading. Recent guidance has specified JPG/JPEG format, up to 80 KB, with approximately 1200 × 1200 pixels and a minimum resolution of 150 px/inch. Always verify the latest official notification when registration opens.

2. Scanned Signature

Candidates must upload their signature during CAT registration.

Keep these points in mind:

• Sign using a black or blue pen on white paper
• Scan only the signature
• Save in JPG/JPEG format
• Follow the prescribed dimensions and file size (recent guidance mentions approximately 80 mm × 35 mm and up to 80 KB).

Avoid uploading blurred or cropped signatures.

3. Class 10 Marksheet or Certificate

The Class 10 certificate is required to verify:

• Date of Birth
• Academic details

Ensure that the scanned copy is clear and readable.

4. Class 12 Marksheet

Candidates should also keep their Class 12 mark sheet ready while filling the CAT application form.

You may need:

• Board name
• Year of passing
• Marks or CGPA
• Percentage calculation

Double-check all information before entering it.

5. Graduation Details

Graduation information is mandatory for every applicant.

Keep ready:

• Final year marksheet or degree certificate (if available)
• Semester-wise marks (if applicable)
• Overall percentage or CGPA
• University name
• Course duration
• Year of passing

Final-year students can also apply by entering the required details as specified in the CAT notification.

6. Category Certificate (If Applicable)

Candidates belonging to reserved categories should upload valid certificates.

These include:

• SC Certificate
• ST Certificate
• NC-OBC Certificate
• EWS Certificate

The certificates should be in the prescribed format and uploaded as scanned PDF files where required.

7. PwD Certificate (If Applicable)

Candidates applying under the Persons with Disabilities (PwD) category should keep their disability certificate ready.

The certificate should:

• Be issued by the competent authority
• Be clearly scanned
• Match the prescribed CAT format, if applicable

8. Work Experience Details (If Applicable)

Candidates with work experience should keep the following information ready:

• Company name
• Employment duration
• Joining date
• Work experience in months

Generally, work experience details are entered in the application form, and supporting documents may be required later during admission by participating institutes. Keep your employment records safely available.

9. Valid Email ID and Mobile Number

A valid email address and mobile number are essential because all important updates regarding:

• OTP verification
• Registration confirmation
• Admit card
• Result notifications

will be sent through these.

Use an email ID that you regularly check.

CAT 2026 Document Upload Specifications

Here is a quick overview of the important upload requirements.

Always upload clear, readable files that match the specifications mentioned in the official CAT notification. Incorrect file formats or oversized files can lead to upload failures.

CAT 2026 Registration Checklist

Before starting your CAT registration, make sure you have:

• Recent passport-size photograph
• Scanned signature
• Class 10 marksheet
• Class 12 marksheet
• Graduation details
• Category certificate (if applicable)
• PwD certificate (if applicable)
• Work experience details (if applicable)
• Active email ID
• Active mobile number
• Stable internet connection
• Debit/Credit Card, Net Banking, or UPI for fee payment

Common Mistakes to Avoid During CAT Registration

Many candidates make avoidable mistakes while uploading documents.

Here are some common ones:

• Uploading blurred photographs
• Incorrect signature dimensions
• Wrong file format
• Oversized files
• Entering incorrect academic marks
• Using expired category certificates
• Waiting until the last date to register

Checking everything before submission can save you from unnecessary stress.

Final Thoughts

Preparing the documents required for CAT 2026 registration in advance is one of the smartest ways to ensure a smooth application process. A simple checklist can help you avoid upload errors, save time, and complete your registration without last-minute confusion.

If you’re planning your MBA journey, Guide Me can help you stay updated with the latest CAT notifications, registration guidance, preparation strategies, and MBA admission support. You can also practice with free CAT mock tests to assess your preparation, improve your accuracy, and build confidence before the exam.