hello,

yes, you can apply for msc course. but in west bengal most of the colleges offer msc only to bsc honours holder. you can appear in IIT JAM exam and can do msc from iits. also there are many university outside of west bengal who offers msc courses.

you may apply in-

Banaras Hindu University Post Graduate Entrance Test (BHU PET)

Panjab University Postgraduate Common Entrance Test (PU CET PG)

delhi university