B.Com

You can get all the information from the following link;-
https://www.shiksha.com/college/bishop-cotton-women-s-christian-college-bangalore-71021/course-bachelor-of-commerce-b-com-441805

You can get all the information from the following link:-https://www.shiksha.com/college/loyola-college-nungambakkam-chennai-1108/admission.

Yes you can apply for CMA US.

Refer to the link below for B.Com Courses & Fees at Impact College Of Science and Technology, Rampur for 2022
https://www.shiksha.com/college/impact-college-of-science-and-technology-rampur-128363/courses/bcom-bc.

To know about the cutoff, placements, fees, admission. pf Master of Computer Applications (MCA) at Ramaiah Institute of Technology, Bangalore, refer to the link given below-
https://www.shiksha.com/college/ramaiah-institute-of-technology-m-s-r-nagar-bangalore-474/course-master-of-computer-applications-mca-406533

No Doon University didn't provide placement in government banks. Infact no institute or university provide direct placement in government bank or institutions. One need to qualify entrances and interview held by government organisations to get into bank.

Yes you're eligible
But you can't do it from Top B schools as they will look for your last academics. But you can do it from decent colleges with a decent package.

Yes, you can do it. As CS requires more time and effort doing B.Com or other graduation through distance mode will be helpful for you. If you cleared your CS every one will hire you on the basis of a CS Certificate so it will not affect you so much. But if somehow you didn't clear your CS B.Com from distance will somehow give us less weightage.

You can apply in IGNOU DUSOL, Narsee morajee, Chandigarh University, Symbiosis, Mysore University
for Distance/correspondence course in B.Com.

In which college or university do you want to take admission. As entrance dates differ from college to college.