Hello aspirant,
CA/CS/CMA are three highly reputed courses in commerce.These courses provide immense oppurtunities .
CS mainly deals with law related topics along with accounting,financial management,taxation and audit.
Hope i answered your query.

Hello,
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I would say its.a beautiful idea of studying CS.
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Only B.com has no much value in these days.Studying CA increases the scope of having a great scope.
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But CA helps you to become a account or getting a bank job.
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As you said that you want to be a businessman.BA helps to be that.
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But you will be in need to manage both of them.CA is more tuff then your course i.e.,B.A.
You should be enough addict to education to get both of them cracked.
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Hope this was beneficial for you.
Best of luck