B.Com

You can go ahead with it. However, if you are already in final year than you can go for MBA with specialization in finance. It will give more weightage to your CV.

Anyone would do but I suggest that you opt b.com hons because it will give u good overall knowledge.

http://www.iimahd.ernet.in/programmes/fpm/how-to-apply/eligibility-criteria.html. Please go through this link.

MBA can be done from usa, Australia , uk or canada. It depends on your profile, finances, etc that which country is most suitable for you. Here is the list of the best colleges.
www.timeshighereducation.com/features/ft-global-mba-ranking-2016-london-business-school-retains-uk-top-spot

CFA stands for certified financial analyst.
this qualification asks rarely.
doing .CA/MBA.finance. best

Sukhveer, your query is incomplete. Fee structure for B.Com varies from college to college. This you need to check with different colleges.
These days we have universities offering B.Com (Professional), integrated/ dual B.Com-M.Com/ B.Com-MBA too.
You can check the websites of some of the best universities in the country offering these courses and are also having good placement record.
Good luck.