Hi,

It is difficult to say that if the punjab university will change the exam date or not. It totally depend on the university entrance exam conducting authority.

What you can do is to mail the Punjab university at uglaw@pu.ac.in requesting to change the exam date mentioNing your name , application number and problem. If they take a notice of your mail they will change. if they do not you have to select that exam which is at your higher priority.

Hope it helps.