Dear candidate if you consider the ongoing career Trends, BMS studies will give you an overview of financial marketing and will lead you to successful jobs. And even if you are getting B.Com Hons I don't think leaving such a good college like St. Xavier's will be a wise option. You will get a handful of opportunities to explore your career plans in this college,

https://www.careers360.com/colleges/st-xaviers-college-kolkata/bms-hons-course

Good luck!!