CA

No, after MBA, you can take direct admission in CA inter. But final level is not possible.
Thanks.

You need to get yourself registered with ICAI. All the details are available on website www.icai.org

You should have minimum 60% in your science graduation, then only you can enter into inter-CA.
Thanks.

If you don't want to mess your life, then pursue only B.Com along with CA. This will give you much more time to focus on CA studies.

One can apply for registration after 10th or 12th, however, foundation exam can only be given after 12th exams.
Thanks.

CA is a course, not a degree. However, many colleges treat it as a post graduate degree.
Thanks.

If you mean the School of Open Learning DU and the world famous IGNOU then the choice is having equal names. However, IGNOU shall be the first option.

The duration of CA course is 4.5 years. The minimum duration of the Chartered Accountancy Course for a person joining after Class XIIth (I. e. through CPT Route) is 4.5 years. The minimum duration of the Chartered Accountancy Course for a person joining after Graduation (I. e. through Direct Entry Scheme) is 3 years.

Hi Abhishek,
CA in itself is a great scope with a wide scope. If you want to do something further, you may consider MBA in Finance or CMA. But as per me, I think you should go ahead with your career as a CA.