Hi aspirant,

To appear for the COMEDK examination there is no maximum age limit so you can definitely appear for the examination without any fail. However you must score minimum aggregate of 45% marks in Physics, Chemistry and Mathematics (40% for candidates belonging to SC/ ST/ OBC categories) and should also have passed in the subjects individually.

Talking about the fees structure, it has nothing to do with the entrance examination and each of the college has a different fee structure the details for which can be seen at their official website.

Hope it helps!