Dear Aspirant 

Yes definitely there will be spot round counselling conducted by wbjee will also include jadhavpur University so just wait till the final round over. So you don't have to worry about this because it has to happen because even after taking admission some students left college when they get good colleges through jee or other colleges. It will be just after 15 to 20 days after the last counselling. 

Good luck for your future 

Feel free to ask if you have any further queries.