CA

You should focus on getting a good job after completing CA. Salary depends on the kind of job you get and the firm in which you are working. After completing the CA course, you will get good salary package and numerous career opportunities.
For more details, follow the website of ICAI.

You may evaluate BBA and MBA, law, hotel management or fashion designing as an alternate to popular career options like engineering or medical.

For detailed information, you can visit the website of ICAI.

As exams difficultly level is concerned, there is no difference in CA and CMA. Yes, before graduation, you can enrol in level 1 i.e. foundation. After graduation, you can directly enrol in CMA level 2 i.e. inter. Follow the website of ICMAI/ICWAI to know the details of the procedure.

Prospects are very bright indeed. However, it also depends how on your past academic record when it comes to securing a good job first.

Dear ,
Yes you can plan for actuarial science with PCM or even commerce stream because math subject has important role in this field, specially stats part.
But for the good opportunities you should have good command over math subject.
Even you can do B.Sc maths (Hons.) and than plan for Actuarial Science exam that will be good combination in terms of strong foundation of math subject.
All the best

Yes, this is a good option as many people are not able to cope up with both of the courses. It becomes slightly difficult to attend classes of both at the same time. In CA, you will cover every bit of financial sector and that would help you in near future while giving the final exams.

You can apply to the following universities:
WCU in USA
Brunel University, London
Keele University, UK
Ball State University, USA

There is no college for CA. It is a self doing course or you can take coaching for some guidance.