Hello dear student,

If you don't have the certificate right now at the time of filling fir the application it's not a problem but you just need to have the certificate when you get selected . at the time of document verification you must have it , if you will not be able to do so then they will not entertain you. It will even cost you the cancellation of your selection.  If in the application form it's asking to upload the form then also you cannot proceed the form but if you are certain that you will get your certificate before the documentation process then you can surely proceed. I hope I was able to make you understand this and I hope this was helpful .

Best wishes