hi,

see you did not mention any course name like whether it is b.tech or b.sc in computer science, but in west bengal majority of engineering seat fills by wbjeeb score, for jadavpur university engineering admission, your rank should be under 200 if you from general category for cse stream, for colleges like IEM rank should be under 2000, if your rank is under 1500 you have decent chances for cse in government and private tier 1 institute.