Canada

Canada is one of the hot spots for Computer Science, Engineering and related fields. If you have the required qualifications and skills, you can find yourself in a good position.

You get PR easily in Australia comparatively to Canada.

Dear Amar, you are eligible to apply. What about your English language requirement scores? You must clear IELTS or TOEFL as well. Please read the following
https://grad.usask.ca/admissions/admission-requirements.php#Englishlanguageproficiencyrequirements
Always first check the university website for FAQs.
Best Wishes

You need not convert your grades, it will be done by the university you are applying to. Grading system and conversion methods are internal to an university so can't be explained here.

Your question has been answered already it seems. Please check. The work culture is quite good and labour laws are followed strictly. Read blogs about Canadian work culture and work ethics. one such is http://settlement.org/ontario/employment/working-in-canada/workplace-culture/
Best of Luck.

Many universities have this provision. You must write to the university you wish to enroll at for such lateral entries.
Best Wishes

There are two costs you need to keep in mind while looking to study abroad - 1. cost of Tuition 2. Cost of living
The cost of tuition for studying Hotel management from US would be Rs.14-15 lakhs per year for mid-level universities. Top universities will be a lost more expensive.
The cost of living will be higher for US, depending on the city you will live in. it can range from 10-12 lakhs per year. In Canada it will be 9-10 lakhs per year.

Please mention which exact course are you interested in pursuing as the exams are different for many courses.

The job prospects depend on which field are you better at. If you have great marketing skills, then even if you are hired at a basic salary, you will get promoted faster and your career will grow at a quicker speed. Same for the HR skills.
So don't look at the overall job market because there is no right or wrong answer to your question. Job prospects keep changing all the time. Choose the field you are great at, and you will have no problem finding a job and getting paid well in Canada.