im from coochbehar can i get admission in this college with 40211 wbjee rank

Congratulations for your wbjee , you can get in private college in this rank .  It is difficult to predict where you get because it is different in every year . You can try some college through there college website , see the cutoff, seats , faculty and also placements .

There are some college you can see
Academy of Technology, Hooghly

Institute of Science and Technology, Paschim Medinipur

St Mary's Technical Campus, Kolkata

St Thomas College of Engineering and Technology, Kolkata

Siliguri Institute of Technology, Darjeeling

For more information about all private college you can visit here
https://engineering.careers360.com/colleges/list-of-private-engineering-colleges-in-west-bengal-accepting-wbjee

You can also try predict your college from below link
https://www.careers360.com/wbjee-college-predictor

Thank you. I hope this answer helps you.