Hello there. Hope you are doing good, I would like to tell you that every university needs a student to register individually. It helps the university to fetch basic details of a student and the admission process is followed with the help of the registration number provided in the application form. Also, when the rank is determined, the shortlisted names of the students are given on the basis of the details provided in the registration form. Your documents are also validated with your application to provide biased admission to the deserving candidate.

I hope you found this answer helpful. Good luck for your future.