Hello, 
I am giving a link of wbjee cutoffs of previous years 
Which contains
Category wise wbjee minimum qualifying percentage
Past Years wbjee Cutoffs which further includes year wise cutoffs , course wise cutoffs , and college wise cutoffs.
This will help you find a suitable college according to your rank! 
https://engineering.careers360.com/articles/wbjee-cutoff
Although with this rank i think you will definitely get a college in kolkata.but  You should also see other colleges from the link above.
Good luck and keep asking!!