According to your sc category ranking and previous year cutoff for cs and IT 

Branch                                  closing ranking

(Round 1)

1. Computer engineering          826

2. Information technology          5601

(Round 2)

1. Computer engineering            1412

2. Information technology              7020

(Round 3)

1. Computer engineering    2073

2. Information technology        7748

(Round 4)

1. Computer engineering      3370

2. Information technology      8789

So as per above ranking their is probability of you to get cs as well as IT. You can as per your choice.

I'm afraid you have very less chances of getting into Jadavpur University in any of CSE or IT departments as their all India closing rank for SC candidates lie somewhere near 1000 for CSE and 4000 for IT. But you can surely look out for other colleges like colleges under WBUT.