Canada

Hello Janam,
Conditional admits are given for two reasons:
1. If you don't meet English language proficiency requirement.
2. If you are still in your final semester and have not submitted the transcript.
If your profile is strong enough, but if you don't meet English proficiency requirement, then you will get the conditional admit initially. Then, you can retake the test, score well and get the unconditional admit.
Universities which offer conditional admit are:
1) Concordia University.
2) Carleton University.
3) University of Windsor.
4) University of Western Ontario.
5) University of Manitoba.
All the best.

Conditional offer letter is one in which you are granted with an offer letter under conditions, which have to fulfill within a certain time period. For example: any academic document, which you are unable to provide at the time of admission or you are unable to show the funds but can show afterwards. So, in this case they provide conditional offer letter. If you can prove that your problem is genuine and you will fulfill all the requirement later on within the time frame, then every university will provide you that.

Whenever, I want to find whether something is in demand in other country or not, I first see in which profession I can go after my course and thereafter see the job listings on google. If it is high, then it is in demand or vice-versa.
So, see in which area you can go after MS mechanical and find the jobs listing on Google of that in Canada. If there are more number of jobs than good.

Your IELTS score is good enough to get admissions in Masters course.
There are some universities of Canada which accept 15 years of education.
You can go for pre-Masters in University of Manitoba.
http://umanitoba.ca/faculties/graduate_studies/admissions/programs/physics.html

Would you like to go for studies or a job?

One of the university of Canada whose entry requirement for M.Sc nurse practitioner is given below. So, you will get an idea what you need for other colleges.
http://umanitoba.ca/faculties/nursing/prospective/grad/np_focus.html

It is not difficult to find part time jobs in Canada, but it have two official language. One is English and other is French, so if you go to any French region universities, then you will face little difficulty. Manufacturing management have good scope in Canada.

Every university have different closing dates for submission of application, so first you choose your preferred university and check their last date of application submission as your profile is good enough, so don't worry, you can go ahead.

All the Majors have good prospect in Canada, but civil engineering, oil and gas engineering, environmental engineering, computer science engineering, geologist, project management, renewable engineering have better prospect in my view.