CA

No, if you pass B.Com more than 55 percentage. You are exempted from CPT. If you pass graduate or post graduate other than commerce. You need to have 60 percentage and above.

Please go through the link you will know well
https://www.icsi.edu/media/webmodules/aboutus/courses/CS_Course_01042014.htm
and after
Go to www.icsi.edu and register yourself in executive programme, as you have cleared CPT you don't need to take the CS entrance (foundation) exam. Pay the required amount and upload your documents after scanning them. They'll send you the registration number and books.

I hope these link will help you
1. https://www.shiksha.com/it-software/colleges/m-sc-colleges-Ahmedabad
2. https://www.shiksha.com/it-software/colleges/m-sc-colleges-bangalore.

Yes. You can do CA along with B.Com. Most of the cases, studens opting to study CA, already doing their B.Com. It is mutually beneficial to each other also.

You need a good GMAT score, a good qualifying score in IELTS or TOEFL and a Bachelor's degree from a recognized university. Few universities abroad may ask for work experience as well.

For which course are you asking? Can you complete your question?
For B.Com, 2-3 lakhs are more than enough.
For MBA, 15-25 lakhs in the best and popular college that to for management quota.

Hello,
Yes. Online Application form for CA CPT is available from April 4th 2019!

They provide good facilities here. Also, the infrastructure is also good. You can take admission here.
Good luck!

Yes, you can register without results. There is no problem with that.
Good luck!