Hello,
Cutoff vary every year depending on various factors like the difficulty level of the exam, candidates appeared in the exam, seats available, etc. So, it would be difficult to predict the exact rank required for admission.
However, according to the previous year WBJEE cutoff, closing rank of Information Technology branch for SC category in Jadavpur University was 7561.
You can go through the link below to check the cutoff-

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

Good Luck!

Dear student 

Your rank in wbjee must be high to get admission in javadpur university.

All the best