Hi Aishwarya

If you are thinking about it then you should go for it. You can opt any course but pursuing b.com will give you some advantage for CA. You will have a lot of time to prepare for CA exams, the subjects you'll study will somewhat help you with the CA papers and also many CA firms visit colleges for campus recruitment. So take your time to make the decision.

All the best

Hey

The various  study options after 12th from Commerce are given below. Other than this Bcom plus CA is also a very good option for a commerce graduate. It would require a considerate amount of hard work and consistency. So if you're interested in this then you should go for it. Otherwise here is a list of other options-

Bcom (P), Bcom (Hons)

BBA

BMS

BA Economics (Hons)

BA LLB/ Bcom LLB/ BBA LLB

BMS- Bachelors in Management Studies

CA/ CS/CMA

Hotel Management 

Best of luck!