University of Mumbai [MU]

 If the professional course is opted from a University in India then it would be difficult to pursue two courses at a time. The application for any college mentions that you can not pursue two courses at a time. In cases you submit your original certificates to the Professional course you're doing in they would return it only after completion and enrolling yourself to a distance course they would require all your originals for verification purpose.

The admission forms of Mumbai University 2019 will be available offline from the last week of May 2019.

Yes, You can do that. But I would suggest you to continue as it's a waste of time to drop out and prepare for the exam again and then give exams next year.

Dear Nilesh Rathore,
All Government Universities needs to adhere to Reservation of the respective State and Nation. BMS Admission, which is a merit based shall be attainable depends upon the applicant and their ranking this year upon demand for the course.

Yes, you can apply for MA in another subject even if you did BA in another subject. But, it is more important to choose the right subject so that your career can shape up accordingly.

Admission will start from the second week of June. Good luck.

Hello,
You go through the below link for admission process:
https://www.shiksha.com/teaching-education/course/m-ed-university-of-mumbai-fort-campus-fort-13934

Your best three subject are taken while calculating percentage in Mumbai University. Good luck.