Hi Ramesh
There are is breakage in confidentiality. I use MS Excel and Access quite a bit to analyse my security and grc builds. This can include extracting a few tables from SAP and then importing them and doing pivots, formula, filtering, etc to help me identify issues in the system and fix.
SAP Security covers the identify management of the user (user master, naming conventions, classifications, license management, role assignment, etc) as well as the security role build (what to grant in a role) and then the general system security of the system. It can be a challenging area as security goes across all SAP components and modules.
You need to be clear on what you want your career to be. None of us can suggest what you should or should not do for your career. What are you goals and professional ambition beyond money and reputation? What skills do you think you have (i.e. are you a good problem solver? Are you a good planner? Are you great at teaching others?
Finally, what do you know about SAP? Business Analyst is a good skill set to have and where to take that to in SAP "world" really comes back to some of the other questions I have asked you.
Regards
Colleen
Ps - no need to reply write same words to each person as we can all see what you write 