Changing your name is a long and tedious process.So don't go for it unless you really have a strong reason to change your name.Different colleges have different ways to issues Certificate,so it is advisable to consult authorities about the formalities.You can change your name during your graduation for this you have to follow some legal hassles: Getting an affidavit done is the most important part of name changing.For this you have to go to your local notary and make an affidavit about your name change.Next step includes publish your name change in the newspaper.There is particular format which is available in any newspaper office.After your new name is published in the newspaper your name has to be notified in the official gazette.Go to your local press office and get a copy of 'deed changing surname Form' and fill it.After this you have to go through the process of verification which includes A letter to the secretary stating that you want to change your name and request him/her to allow you to do that,and your pan card,voter ID, Passport etc. also required for verification process.At last when you are done with the entire process,you need to produce these documents to your college in order to change your name in college.