B.Com

Fundamental knowledge of commerce and accounting is must to qualify CA. Definitely, it's one of the best options i.e. B.Com+CA (ICAI).
All the best.

You should opt for cost and management accountant CMA from ICWAI.

Mass communication is a vast domain with many new and traditional courses. Journalism and mass communication is the foundation course if you do an MA in that. It covers all like print, electronic media and public relations, etc.
As you have a commerce background, you can do socialisation into advertising, public relation, corporate communication, communication for development PG Diploma.
Symbiosis gives an MBA in communication management which is good.

Dear Arohi,
Please note that we do not provide B.Com in our institute.
Regards.

Admission in BBA at Manipal University is on the basis of candidates scoring minimum qualifying marks in the All India Manipal University Online Entrance Test (MU-OET). The eligibility criteria to seek admission in BBA is clearing 10+2, A Level, IB, American 12th grade or equivalent with a minimum of 50% marks in aggregate. Currently, admission process is on and you can fill online application.

Mass communication and journalism courses are considered social sciences and have no such 'pre-requisite' that one should have previous degree in a particular domain. You can do Master's degree actually. Try doing some trending courses like internet journalism. However, safest course is MA Journalism and Mass Communication.