Dear Sonali,

Yes ,  you can give exams after Covid too. It will be considered a reappear or say supplement exam(supply). Every University has set of rules for reappearing exams. Some universities give two chances to attempt exam and some give three. You can enquire from your university or college itself. Or you can contact the management team of your institute. They will provide you with all the details.

Hope this helped.

All the Best!!