Every year cut offs are different from the previous years as the cut offs depends upon the factors like 

• number of applicants applied 
• number of applicants finally appeared 
• difficulty level of the paper
• last years cut off trends 
• number of seats available in the institution.

As you didn't told about any specific branch or college I suggest you to go through the following link and check out the last year cut offs.

https://engineering.careers360.com/articles/wbjee-cutoff

Good Luck!!