B.Com

You may not get a college for M.Com as you need a score above 50% for the admission.

Please mention the name of the college.

For this query, you have to directly contact the college administration.

No, there is no criteria specifically for mathematics marks. However, one must have 45% of passing marks in aggregate and also must include mathematics in best four.

Kindly visit these links:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india/2-2-0-0-0
https://www.shiksha.com/mba/articles/top-5-mba-specializations-in-india-blogId-3223
https://www.shiksha.com/mba/articles/20-mba-entrance-exams-you-can-take-this-year-blogId-11473

I think you should wait till the last counseling round as you have secured a good rank and you have chances of admission.

Download the prospectus from this link. It has details about the procedure and requirements:
http://www.bjbcollege.in/admission/43

Yes, MCA is available in distance education in various institutes, not all institutes provide distance education but most of them do.

The preferred courses are:
MBA in finance
CA (Chartered Accountant)
US Certified Public Accounting (CPA)
Financial Risk Manager (FRM)
Masters of Commerce (M.Com)
These courses will enhance your skills and make you more worthy for the market.

Hi, since this institute is affiliated to GGSIPU, you will have to go to ipu.ac.in and search for the maximum permissible fees there or you can contact the institute through this link:
https://www.kccilhe.edu.in/courses/ggs-ipu-bcom-honours-degree/#.