Hi, Hope you are doing well!

MBA and Company Secretary are completely two different career lines. MBA is all mainly about management of business and company secretaries deal with the corporate legal matters.

If you are doing LLB you should go for Company Secretary course(if choosing between MBA and CS). Otherwise LLB is enough too.

Company Secretary course syllabus mainly focuses on corporate and company law. LLB is done along with CS, so that these two professional qualifications can complement each other. Small companies don't appoint lawyers separately(as its not mandatory), they appoint CS+LLB candidates so that they can make these candidates work as both lawyer and CS alternatively. But note that CS and Lawyers need to get their practicing certificate and due to this one can't practice both the professions at a time. One needs to surrender CS practice certificate to practice as a lawyer and vice-versa.

LLB & MBA, MBA & CS are never good combinations as these courses have no similarity at all. Do MBA with CS or LLB only if you want to make a career only in MBA, or only in CS, or only in LLB.