Hi Deendayal, 

Do not stress, you can consult the college and share the scenario, they will understand your situation and may give you some more extra time for the submission of the document. In the meantime, you can visit your school and collect the migration certificate. 

Good luck.

Hekko deendayal,
I think you can submit after some time.
If you haven't your certificate then they would be give you some time.
There are max 10 or 15 days relaxation for certificate.
If your University give you time then ok otherwise you have to go your school and apply for new one and take it.
I think there are no other option.
Good luck for that.