Hello Anubrata,
I would like to tell you that all the colleges which provide Admission through WBJEE demand a high rank for the admission in the CSE branch.
If you belong to the general category you have a fairly low possibility to get CSE with a rank between 10000-15000.
As CSE is one of the most admired course of every aspirant, you must try to get a rank in top 3000 to get CSE in the most premier colleges.
Know more about WBJEE cutoffs - https://engineering.careers360.com/articles/wbjee-cutoff#WBJEE-Cutoff-2021
Hope this helps,
All the best!
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