hey Dipankar,

In WBJEE there are usually 3 rounds only. And the last round also is known as MOP UP round where the college's leftover seat is being chosen by the candidates. And this only happens if seats are not filled. the E admission is clossing today. the mop up round may start coming a week or if this not happens then you must assume that seats are filled.

for more info visit https://engineering.careers360.com/articles/wbjee-important-dates

hope that helps

all the best