Hello Geetanjali !!
The dates for mop up round have not been announced yet . But it is expected that it will be starting from first or second week of August.
Please visit these two links to be updated-
https://www.google.com/amp/s/medicine.careers360.com/articles/west-bengal-mbbs-counselling/amp
http://www.wbmcc.nic.in/UG/HomePage.aspx
All the best .
Hope this helps .
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