Hello,

it won't be possible if  the authority doesn't allows for it or don't have any provision for it. it would be better to ask for guide from the help desk of NATA. You will get contact details from the official webpage of NATA organizing body.

they can guide you better and what all steps to be taken which can be beneficial for you and will be authorized.

Do write a mail stating your issue and reason for not being able to travel to the exam center. and make a call if toll free number is available. They will help you out for sure.

hope it helps!