mzr below is the email i received
Thank you for submitting your passport for issuance of your permanent resident visa. We have now issued your visa and your passport are now ready to be returned to you.
In our previous correspondence with you, you were advised that your passport would be available for pick-up at the High Commission of Canada in Dhaka. However, the Immigration Section of the High Commission of Canada in Dhaka is now closed. Therefore, it is no longer possible to deliver your passport to you through this method. Our office will return your passport to you by registered mail on Monday, May 7, 2012 at the following address:
XXXXXXXX.
If the option to receive the passport by registered mail is not suitable for you, then please advise our office before the date noted above for delivery by registered mail. If you prefer to receive your passport by courier, please send a prepaid courier envelope that is large enough to hold your passport. Please note that our office will not cover the costs associated with delivery of passport by courier. If our office does not receive a response from you by Monday, May 7, 2012, we will proceed with delivery of your passport by registered mail.
Please note that your visa expires on XXXXXXXX, so you must land in Canada before the expiry date.