I became a permanent resident on Sep 25 but haven't received my pr card yet due to issues with my photos. I resent the photos today but not sure when will I get the card. I need to board flight on Dec 26 from Toronto to Mumbai with stop over at London...Where I need to change planes... Will I need a transit visa. I am geting confused coz I am geting mixed response... Some one pls help....i have a valid visitor visa to usa....