What will be last date to cancel the admissions taken in first round if we do not get desirable seat in cap 2 in maharashtra mbbs admissions

Your question might be if you get a desirable seat in cap 2 how to cancel college admission in round 1?So once the cap 2 list comes (which came day before yesterday) within 4-5 days, you have to collect the documents submitted in your first list allotted college back and repeat the same procedure in the second list allotted college showing that you accept the Upgradation. Thankyuou. 

I have taken BDS admission as per cap1. In cap2 i am not getting any upgradation. I want to cancel the admission. Can I do with out losing fee deposited. If canceled can I participate in mop up