CA

For career i think CMA will be better because it can be completed short period of time so soon your career will be enhanced.

I think compared to these courses you can Choose CMA(US) course.it is a prestigious and easy course too

You should better opt for some regular course, i.e. BSc, and keep courses like CA and CS as a side option. Courses like CA and CS have no certainty of future, even if u scored 91% in your 12th grade.

c.a means a)cost accounting i. e.icwai b) chartered accountant .i. e icai.b.com provides conceptual base to pursue c.a.so,a) for icwai,just graduation is required.you can directly pursue inter level.b) from icai you need to qualify cpt .follow the website of icwai (icmai) and icai respectively.

There are many courses but best courses are CA and CS.You can also do b.com,bba,b.sc IT,law or bca

If you are planning to do graduation with CA, I suggest you go for relative less rigorous degree. I am of the opinion that BCom(P) will be lighter course in comparison to BCom (Hons).

Most of the colleges in Canada offer diplomas in engineering, but not for all specializations. So please mention which specialization within engineering are you looking to pursue.