Hi Karthik ,

First of all , congratulations for your score. As per your rank ,you can even try for government colleges if you want to . But as you're interested in joining cs or it in a private colleges . Here are some good colleges for it or cs in west bengal -

• Amity University , Kolkata
• Techno India University , Kolkata
• Adamas University , Kolkata
• Neotia University .

Hope this helps ,please do ask for any doubts in the comment section.