Colleges in Karnataka

No, it does not offer M.Com along with Ph.D.
Refer the link to know about the programs offered by Central University:
https://www.shiksha.com/university/central-university-of-karnataka-karnataka-other-32702/courses

DSCE main campus is the mother campus of all other Dayananda Sagar campuses. Maybe they don't have the best of everything because they were constructed earlier but they do have more reputation and better faculty among the others.

Yes, you do have a chance. Just apply for the counselling and hope you get it.

NCHMCT 2018 College Predictor. Use your NCHMCT 2018 rank to see where you can get admission at the link provided below. See the courses, colleges & rounds you may crack. The result is based on admissions data of NCHMCT 2017. Get resources & insights on colleges & courses:
https://www.shiksha.com/hosp

I would suggest you to choose Amity University among all for BBA, as the three years are divided into six semesters. During the initial semesters, we create a foundation that provides an in-depth knowledge in all important management streams. By the beginning of the third year, students are ready to

Placements are fairly good for almost all departments. The top core companies do come for recruitments but the getting in part depends on the person's performance in the process.