Hello Mohammad,

There has been no age criteria set for the persuing any masters courses. Anyone who have completed their unger graduation in any course irrespective of their age are eligible to opt for the masters degree. In general the most common age category master degree courses is 22-35. Therefore you need not worry about your age, you can definately go and persue master studies further, if you have completed you under graduation without any backlogs successfully.

Hope this Helps.

Good Luck! will always be happy to help you with any other doubts.