Hi soumyadeep,with your OBC rank you may get

Cooch Behar Government college(Cooch Behar)

Government College of Engineering and leather technology(Kolkata)

Government College of Engineering and Textile technology (Serampore)

This colleges are on the first round of counselling,if you carry on for other rounds you may get many more colleges.

Good luck!!

You can check out the cutoff of the wbjee here

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

If you are from West Bengal then you might get Kalyani with I T branch, or maulana abul kalam university which has it and cse only, but you have slight chances. You can go for cooch behar in which you will surely get cse. 

Good luck