The mistakes in form filling happen frequently. It is advised to email CMAT authorities immediately stating your application ID and the details of the correction to be done.

They would surely help you out in correcting the form.

And do it before the exam and get an email reply from them.

E-mail id: customercare@aicte-cmat.in

All the best.

Okay. So, the details can't be altered now. But you can do one thing, you carry your identity proof like aadhar card which has all the correct details and they will allow you to appear for the examination. There will be no problem if you present a valid ID proof to them. All the best arbaz!