Hi @nandininarvekar,
The first thing to do is to create an admission form (Home > System Admin > Form Builder)
It is possible to complete an admission form with the button + (Home > Admissions > Manage Applications)
It is also possible to display the admission form on the login page.
To display the form on the login page (Home > School Admin > Admissions Settings)
I hope my explanations will help you move forward.
Sylvain