Hi aspirant,

Generally after an exam there is no option for editing any details or upload an updated documents. Here in your case you want to upload new document. So is it nearly impossible. However you can try one thing, for official website just try to find oit helpline comtact number or mail id. Just try to contact them over call and mail, amd give them sufficient proof and clarification. They will help yoi furthe.

hope this is helpful to clear your dilemma.