CA

Yes, you can do it. A candidate is eligible for enrollment to any of the level(s) of the Intermediate (IPC) course on passing the Common Proficiency Test and Senior Secondary Examination (10+2 examination) conducted by an examining body constituted by law in India or an examination recognized by the Central Government as equivalent thereto.
Students who are pursuing their final year graduation course can also register for the Intermediate (IPC) course on provisional basis and such students registration would be regularised and they can commence practical training only on submission of satisfactory proof of having passed graduation examination with the specified percentage of marks within six months from the date of appearance in the final year graduation examination.

It is purely based on your interest and the area you wish to work in. The scope of work for a CA is mainly in the field of finance and accounting area whereas MBAs have more diversity to choose from.
There are CAs as well as MBAs who have climbed up the ladder and reached higher positions, though we may say that in certain areas like investment banking, financial consulting or mergers, and acquisitions, an MBA would be preferred than a CA.
On the other hand, there are instances of CAs who have picked new skills while on the job and handled greater responsibilities than someone who has an MBA degree.
There are also CA professionals who apply to international MBA programmes to have a shot at a global career.
So, we can sum up that a lot depends on the nature of your job, the related responsibilities and the learning involved.