First thing you need to do is file a police report.
Once that has been filed, you will have to visit the Indian Embassy in Vancouver and check with them what will they need to reissue the passport. They will need police report for sure.
If you are missing your study permit as well, you will need to send a request for the replacement of your Study permit as well.
Once you get your passport and study permit (if lost), you will need to get your visa stamped again from CPC Ottawa.