You are eligible for the both MBA and M.com after completing B.Com with 58%. These courses are master degree course, and both these courses have number of the opportunities. You can choose one of these according to your interest.

After completing MBA you can get following types of the jobs:

Accounting Managers
Cash Managers
Chief Financial Officers
Corporate Controllers
Credit Managers
Financial Managers or Financial Analysts
Investment Bankers
Investment Banking Associates
Investment Sales Associates and Traders

With the M. com degree you are eligible for following positions:
Auditing
Banking and finance
Electronic retailing
Funds management
Management consulting
Stock broking

You should choose one of these courses according to your interest, good luck……………