Dear friend,
Every course is best or has scope ..the main thing  is that u should opt the career in which u have interest or can do well.
Am suggesting some of the courses for a commerce student. You can opt anyone on the basis of your interest .
CA- Chartered Accountant

You must think of doing CA if you can give time to your studies and you love accounts.

*CS- Company Secretary

You can opt for Company Secretary if you wish to have a professional degree like a CA but you prefer law over accounts. The combination of CA+ L.L.B. is considered the best in commerce.

*L.L.B

If you are the one who loves to put forth an opinion and are really good at it.

*M.B.A.

If you are a typical business minded person and love corporate world then this one is for you.

*Bank Jobs

Always apply for Bank exams as they are really worth if you put in enough efforts.

Among other options you have

Equity Analyst, Finance Manager, HR manager, Insurance Field etc

hELLO Animesh,

You can go for Chartered Accountant or Company Secretary Certification programme. You must aware with this fact that if you have enough potential and abilities then you can create scope by yourself. Learn new skills related to your field. Be updated with all upcoming technology and trends in your field.

Good Luck.