hi,i ll try to answer as far as i know but i am not an expert , so second opinion is desirable.
i think u ll have to go to india to file your application for sure.
secondly, i dnt think u can change it as the border.
i am quite sure u ll have to go to india but if u have a work permit, it should take that long to get a PR visa.
your best bet is to seek the advice of a lawyer.
maybe u can try visiting campbell cohen while ur there also.
but in any case, once ur visa is expired, u ll have to go to india.
try and look for a job but also, try to look into provinces which accept imigrants and can help them get work permit.
i hope you succeed in whatever you do.
also, try and seek advice from PMM who is very well versed in such matters.
enter your query again into the first heading and in subject, also type seeking advice from PMM, as soon as he sees it, i am sure he will reply.
Take care and god bless you

OCANADA
