Dear Aspirant,

If you have filled the wrong category in your entrance exam. Then there is an edit date given to you. But if  the date is gone and you have given the exam there is no option to change the category. Category is a very crucial in applying the entrance exams . So there is a small chance that you can change your  category by emailing the concerned authority about your issue. So next take a thorough check in your application.

Good Luck!