Masters

Hi,
I am afraid you are not eligible. Your scores are too low for a conventional university. I would have suggested SPP colleges but they won't accept more than 5 backlogs. Please try any other country, may be Norway, Ireland, Belgium, etc. You may also consider vocational/professional courses in New Zealand and Australia.

Hi,
You should opt for Masters from a university unless your career interest is somewhere else. Check the career outcomes and decide which one suit your future needs more.

There are many PG courses you can pursue after B.Sc in maths (Honours). Some of these courses are as follows:
1) M.Sc. in Mathematics
2) Masters in business Administration
3) MCA
4) Masters in Philosophy
5) Chartered Accountant (CA)
6) Chartered Financial Analyst
Selecting the right college can be a daunting task. Here is a link where you can check the rankings of different universities offering these courses:
https://www.shiksha.com/humanities-social-sciences/articles/top-25-universities-in-india-mhrd-blogId-13553

Kindly visit the URL:
https://www.shiksha.com/banking-finance-insurance/colleges/diploma-courses-mumbai-all

Distance education is equal to regular degree if done from a recognized University.

According to my suggestion the priority whatever has to be chosen related to your idea and enhancing capability skills if you want to become an expert in finance or accounting we can go for many options like:
Masters in accounting and taxation
Chartered accountant
Masters in auditing tax consultant
These many options are available because nowadays demand is more in finance based on auditing and taxation levels, you can do online courses too depending on accounting.

You can only pursue PG courses after completing your graduation.