Hey Swastik,

WB Joint Entrance Exam JECA has many good Colleges for MCA as following.

• Asansol engineering college
• Techno India University
• Heritage Institute
• Jadavpur University
• Siliguri Institute

There are many other colleges you can take a look at 

https://it.careers360.com/colleges/list-of-it-colleges-in-india-accepting-wb-jeca-mca

Best of luck