I think you have a very good start there, I underline that my emphasis was not proving that she does not intend to leave Canada, but not actually leaving. They have access to departure records so they can check if they wish.Thank you for replying @armoured she has no intent to leave canada again.
But to prove she wont leave canada becomes little tricky as her contract ends 3 june and she's currently working remotely from canada as we speak.
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This is all we have as of now.
Also, we do not know at which visa office our file is transfered to. it was not mentioned on SA.
is there a way to know that, i tried calling IRCC from india, IVR said to contact through webforms as we dont provide such information.
Again - from intuition - I'd suggest first informing them that she has returned to Canada - simple date, airline ticket, passport stamp (if any), etc. This is because actually returning is the best evidence there is of intent to return.
Later - keep collecting information about her activities and presence in Canada, the type of things you have already started on, and either pre-emptively send to them at some point, or just to be prepared when they ask. I have no idea which of these approaches will be most effective.
(Warning that I'm not following your file actively so don't recall exactly what stage you're at and what you've done so far, if anything slightly off in my comments, probably because of that).
You can try to find out which office your file has been transferred to by calling IRCC or through MP or GCMS notes, etc. I'm not sure it serves any significant purpose at this point, but if you want to, go ahead. Or you could just wait and see which office you get correspondence from.