Accounting & Commerce

The one and most important benefit for taking Science after 10th is you can go in any field after 12th rather its arts or commerce but you can't go for Science courses with arts or commerce subjects. But, you should not consider this fact and go solely on your area of interest.
Both courses are important on their own part.

Hi,
Don't think like that. You still have future. Clear your backlogs first. Some banks provide PGDBF with support of Manipal or other Institutes
Axis Bank, Federal Bank, IDBI bank are some of them. Go to the career link of respective bank website to know more
or try the Institutions in the given link:
https://banking.shiksha.com/pg-diploma-in-banking-finance-courses-in-india-categorypage-4-75-537-0-0-1-1-2-none-1-0

Hi,
Doing any of the courses like CA or CMA has tax subjects else there are short term courses available for taxation field.

Hi,
There are many entrance exams available for MBA admissions.
Some of the important exams are the following
1. CAT
2. XAT
3. NMAT
4. SNAP
5. MAT
IIMs are top institutions in this regard where admission is based on CAT score.
There are other top popular institutions like Xavier's Institutes, Symbiosis, FMS Delhi etc.
Wishing you a good future.

Yes, you can do CS from any good institute via regular mode.

Hi,
Remember the most told quote "Failure is a stepping stone success"
Try again & work hard.
Majority of the C.A.s were passed not by the first chance , they tried again attained it.
If you still want to drop it B.com is a better option if you are a 12th pass or you already holding degree, go for MBA or write bank exams.