Permanent Residency

Yes, Resident certificate is compulsory without that they won't allow you to stay in hostel. Even if you don't belong to Telangana you can bring a resident certificate from the state you live and CA submit.

If you are living in West Bengal and your father is working there for last 10 years, then only you can get domicile certificate of that state. For domicile certificate, go to that area block or government office and apply there.

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.

Hello Abhishek,
To get PR in any country is mostly political decision. Though most countries, particularly Western European & Nordic do offer this to the people having skills. I feel both countries are good in this regard and it's difficult to differentiate as to which one is better than the other. I am attaching a link that will give you all the required information about PR in Switzerland. You can find similar link for Austria also. https://www.expatica.com/ch/moving/citizenship/swiss-citizenship-getting-a-swiss-passport-or-swiss-permanent-residency-107630/#SwissPassports
Best wishes.