Query regarding caste certificate in registration

So am giving CAT for the first time and my caste certificate (central nc-obc) was issued in 2024 , as per the guidelines it should be after 1st april 2026 and it will take time to reissue the certificate and i can't get it before registeration deadline coz i have to travel back to my hometown and my exam is starting from September and i cant miss out mids exam ( otherwise i will not be able to sit for end semester and am in my 5th sem so it means that I will have a backlog with an extended year)so is there any way that I can provide my caste certificate later?? And do the registration without caste certificate??.