Banker

Hi,
Private banks conduct own exam and interview, so you should see notifications. And, you can join any certified bank course to increase your bank knowledge.

Investment bankers help their clients raise money in capital markets by issuing debt or selling equity in the companies. Other job duties include assisting clients with mergers and acquisitions (M&As) and advising them on unique investment opportunities such as derivatives.

if you have a choice always go for bcom hons. as it will help you specialize in a specific field. It will not only help you in investment banking, but also in the future.

Yes, definitely it's enough.
Provided in this 6 month you work hard, keep practising, determined so that you get good percentile and become eligible for good colleges.
Best of luck.

MBA in banking and finance is good.
All the best.

CAT coaching is helpful for getting admission in MBA colleges.
Banking is a different field. You should do graduation and start doing preparation for banking.

Dear,
For your target career, you need to do MBA finance from top B school and plus you can CFA certification to get the portfolio management, Investment banker or portfolio Marketing profile.
All the best

Dear,
In bachelors degree, you may consider these options:
BBA-finance, marketing or international business
Bachelor in investment and financial analysis
Economics honors
Then, you can pursue MBA from top B School with your CAT, MAT or GMAT score.
Even you can add CFA certification in your resume to reach your target.
All the best.