Jayant first of all congrats for your wonderful rank of 244 in WBJEE exam 2018 under the general category tab but I am really sorry to say that according to last year cut-off you can get all the branches in Jadavpur University, Kolkatta except the computer science branch whose cut-off last year was 84 rank and is also expected to be in the same range this year. If you really want to get computer science branch then you can look for other colleges as your rank is pretty good enough to get you admission in any of the other colleges with computer science engineering branch. 

You can check out the cut-off of all the branches in the top colleges by going through this link:

• https://collegedunia.com/exams/wbjee/cutoff

Feel free to ask if you have any more queries. All the best!!