Hello,

Mop up rounds are comducted when some seats remain vacant in government or private colleges in a state after rounds of counselling.

Fees for a seat through mop up round is same as admisson through the other two rounds.

For government colleges it is usually 20-70k Rs and for private colleges it is usually 4-10 lakhs.

Bit for management quota seats in private colleges fees is more than 40 lakhs.

Follow this link for more

https://www.google.com/amp/s/medicine.careers360.com/articles/mbbs-fees/amp

Good luck