Hello,

If your query is regarding JEE Main 2021 application then you can apply for both paper 1 and paper 2 in a single application. You do not have to apply separately for paper 1 and paper 2. If you have already applied for B.Arch and submitted the application you will be able to opt for another paper at the time of correction or change paper 1 to paper 2. Multiple application submitted by a candidate for same session will not be accepted. Your application might not be accepted also you need to give your details as per the class 10th certificate. As you have said you have slightly modified your name there are chances that your candidature may get cancelled of the information given in the application does not match with the details in your original certificates.