Which is a good course after completion of b.com

there is nothing like average or clever or anything... Anyone can do CA or CS if you are interested... just do anything by your heart and work hard and definietly it pays off..
U can choose CA as there are lot of opportunities in this field and if you dont want to then go with MBA..
P.S : This is only my opinion...

In future, you are planning to start your own business then join the PKSBE - Prahlad Kakar School of Branding and Entrepreneurship