Canada

I would suggest you to go for a degree course. A degree course always has a upper hand as compared to Diploma.

Hi,
The university might give you provisional admission, but you need to clear all backlogs before getting admission.

All courses abroad or specialized one. You can do PG Diploma or PG in:
Construction management
Structural engineering
Geo technical engineering
Go through few university website and see the course options.

Have you applied for any colleges?

It depends on which University you apply and your GRE score. Since you have even work experience, there are high chances of getting MS in CS if you perform well.

I hope this link will help you
https://www.bakersjournal.com/education/baking-training-schools-in-canada-6863.

Everything depends on the potentiality of yours and your ability. By the degree of BBA (IB), surely it can land you in a good corporate world. And, you can able to excel and enhance a lot. Thus, I would simply say 'yes'. You can get a job in a good company.
Everything depends on the Interview, and your knowledge skills.

You can apply and get admission. However, you will be treated as an international student from India and you will be paying the fee accordingly.

Hi,
Thinking about getting a PR is too early for you. A PR does not come automatically with the university admission. You must first receive the university acceptance, complete the course, get a job and work in Canada for a few years till you are eligible. You have to extend your stay and things will depend on your job, employer etc. Different province have different requirements for PR. Some provinces have better scope. You can check the Canada immigration website for details.