Could someone help me with courses or diploma opportunity in Finance or any professional qualification which has great scope in all over in future

The FT MiF ranking shows that excellent masters degrees in finance provide strong outcomes.

Basically, if you are fresh out of undergraduate or you only have one or two years of work experience, a Master in Finance program (ideally one that is ranked by the FT) is a great option.

There are also post-experience Master in Finance degrees, some which require work experience in the finance field or some that only require work experience, generally speaking.

If you're at that early stage of your career and want broader options after graduating, look into a Master in Management program.

However, if you're further down the road (at least 4-6 years of work experience) perhaps an MBA would be a better option. Especially one that's ranked in the FT and is strong for finance:

https://find-mba.com/lists/top-business-school-by-speciality/top-business-schools-for-finance-or-financial-services