According to the cutoff trends of the last few years, you will need to score above 130 out of 200 in WBJEE, in order to get into branches like IT, Electrical, Electronics at Jadavpur University. A score of around 105 should get you branches like Civil, Production, or Chemical Engineering at JU. 

In order to get CSE at Kalyani University, your rank should be within 2000 and you will need a score above 92. 

Here are the recent cutoff highlights for JU and Kalyani University. 

This should give you an idea about the cutoff required at JU and Kalyani.