hello aspirant,

you can simply get admission by showing your jee mains marks or by showing your wbjee marks, if the marks are good enough and if you were getting some colleges in the couselling rounds somewhat that had the same rank with the current college, you may have a chance to get admission in the direct quota.

else, you can try for management quota as well.

it's highly suggested that if you are still not getting good colleges, wait for one year, put some extra effort and get better colleges the next year.

list of colleges and their way to admission are-

https://engineering.careers360.com/colleges/list-of-private-engineering-colleges-in-west-bengal

hope that helps