Hello Bhavani

As per current scope,I would suggest you to do MBA after completing your B.com (//B.com) .Because there many scope after doing MBA like you can go for Marketing Fields,Banking&Finance,Information System Management,Management Consulting,Data Analyst,etc.Also it will help you to grow or make your startup dream comes true.

On the other hand,if you choose computer science,there are very limited scope in this field,like Data Entry Operating and some other computer related jobs.

I Hope This Helps

Best Of Luck!!!!!