I am an Indian student studying in USA. I am travelling to India from San Francisco on December 27th, 2017 and have a layover in Vancouver. I applied for a transit visa on November 28th. The estimated processing time right now is 19 days (if the application is filled up correctly) but I also have to mail my passport to Los Angeles, which may take more time itself.
Is there any way I could convey my time constraint to the authorities so that they could help me and give me a speedy decision? Can I personally go to Los Angeles and get my passport stamped in a day or so?