Hi ankush,
I am still in India. I changed my plan but i contacted a lawyer and high commission canada,new delhi for that query. Lawyer told me that i can go with the same permit but i need to explain that why i am moving to different province and college. I contacted IRCC via email so the response i received was to submit my passport again so they can cancel my issued permit and grant me a new one, which i did, but then i received a call from high commission new delhi that there is no need to issue a new one i can still use the existing one because it is valid. So, i'll say travel with your permit but with the acceptance letter of the univ/college you want to go and be ready to explain to the officer why you changed ur college and province. But still its in the hand of the officer at the port of entry.And if you are moving to montreal hope u have received ur CAQ or else they won't allow you at all.