Hello there,

Usually government colleges gives a provisional time of 2 weeks to students to submit all the required documents. If you've any official application of migration certificate you can attest it along with a handwritten application assuring the college of submitting all your documents within 2 weeks.

But, you have to ask the college beforehand if they are willing to give you a provisional time period. Some colleges might not give any time and can cancel your admission.

I hope this information will help you.