Hello Aspirant,

Yes definitely you should attach your name changing certificate along with your marksheets that are to be submitted in college. Also note that you should get your name changed in the marksheets as well and also in your other documents like AADHAR, PAN or whatever ID or certificates you have because sometimes you will have to upload only these identity documents so that time you might face some problem because during online verification the software checks your name with the documents that you have uploaded and if the name is not updated in those documents then your application would get rejected so to avoid such complications you need to update your identity documents as well.

I hope this information helps you.

Good Luck!!