Sales & Marketing

Hi,
Some of the most important subjects in marketing in a regular MBA course are:
1) Marketing Management
2) Marketing Research
3) Marketing Channels
4) Consumer Behaviour
5) Services Marketing
6) Sales Promotion Management
7) Sales Force Management
8) Advertising Management
9) Competitive Marketing
10) Business Marketing
11) Brand Management
12) Internet Marketing
13) Retailing Management
14) Analytical Marketing
15) Advanced Research Techniques in Marketing
In addition to these, some specific courses in Marketing too may be offered by certain institutes and this can vary from institute to institute. Also, you can look to do online courses in Marketing (MOOC) in specific areas from foreign universities as well as Indian institutes.
All the best.

For being an entrepreneur you have to be an all-rounder in the field of marketing, HR, finance, operations, etc. as you are to establish your own business so you need to be more productive and should have all the domain knowledge which would be required to execute your business idea into reality. You must be able to market your product, able to prepare account, balance sheet and effective manage of your Human resources.
So it has been ruled out that BBA finance is over BBA marketing as if there would be no market then how would you be able to create funds and prepare account. So both are crucial but you can choose marketing as it would be including some of the basics of accounts and finance as well before coming to core marketing. So you need to be full of knowledge of every domain to become entrepreneur.