B.Com Scope

Hello Abhijeet!
You can pursue MBA in any among the following streams: Finance, Marketing, HR, Operations, IT/Systems, International Business, etc. as per your interests and career goals. Being a commerce graduate, Finance is probably the best option for you. https://www.shiksha.com/mba/articles/top-5-mba-specializations-in-india-blogId-3223 Kindly visit this link for more details.

Dear,
This field is interesting and challenging with good income too. If you have a good management skill, communication skill, convincing skills and specially like to organize big events, then this is a good field for further growth.
All the best.

If you have PCB combination in +2 than 'yes' otherwise 'no'. because the eligibility for B.Sc nursing is a minimum 50% marks in +2 with PCB.

If you want to do MBA after your Bachelors, go for BBA. It'll make it easier.

MBA is a natural choice for you. Please, take up the course with additional preparation. You pay interest in soft skills from the beginning to save your time.

The most common choices:
Chartered Accountant (CA)
Masters of Commerce (M.Com)
Masters of Business Administration (MBA in finance)
Certified Management Accountant (CMA)
Certified Public Accounting (CPA)
Association of Chartered Certified Accountants (ACCA)
Business Accounting and Taxation (BAT)

There are no special courses for girls, you have many options open after completing your graduation.
1.you can take up a full time job
2.you can do an internship
3.go for PG/Masters in area of your choice
4.work+study (part time)
5. go for specialised courses