Hii aspirant..

Each year her after completion of wbjee entrance examination Jadavpur University conducts its own mop up round for the vacant seats that are left after the completion of three rounds of counselling of admission process.

Coming to your question the process of mop up counselling usually targets the students who are unable to get admission in the three rounds of counselling at the University for B tech programme.

Thus the eligibility to participate in the mop up spot counselling process of Jadavpur University is that you  Have rank according to the specifications provided by the college.

If you are having rank according to the college specifications they are asking for participating in the mop up round then surely you are eligible to participate in the mop up round.

Although if you have been allotted seat in the previous rounds and did not  took admission you are eligible for participation in the mop up round.

Hope it helps. 

Best of luck.