Hey!

It seems like you have missed some details indicating which application you are referring to. You haven't mentioned for what purpose or which Institutions application you want to know about. In any case, since you haven't mentioned the name, i would suggest you to write the required details in the comment section so that a proper answer can be given or you can also post your question with complete details.

Anyhow getting a photocopy for any original application is quite necessary so that you have your documents secured. Whether or not you have to get your photocopy of original application self attested depends on which application form you are referring to and for what purpose, as in counselling or examination.