Thank you for your detailed response. I have been trying to get in touch with a CIC agent since the past one week but no luck with that, I guess I'll keep trying. Once I have been connected to an agent, if the agent is nice enough to tell me the details I won't order the GCSM notes, however, if I do not get the required information I shall order the GCSM notes.
For the address change, the web form doesn't allow you to submit a change in the address if the Application was made outside U.S and Canada, the only other way in my knowledge to send emails to the Delhi Immigration Office where my Application was made and I've done that a couple of times and have not received any reply. I even asked my parents to personally go to VFS office and the High Commission of Canada to get the information from them, even they said the only way this can be done is through an email.
Having said that I'm still open to an advise on how to get my address changed on file. Anyways, if the address change is not possible my 2nd worst scenario would be receiving the PPR for submitting the passport at the Delhi Visa Office for COP, in which case I will simpy pay a 2-3 week visit back home, it will probably worth it for a PR

(fingers crossed)