if they need proof of relation ship and she is your wife sister then follow below thing
you have to send him your family chart which show your relation with your wife then the relation with your family the easy way to make is take both two families from father to all sons and draws all member in a paper then show the link from one to 2nd family i mean you and your wife is married then make a link that my wife sister who is there in your wife family list is a real sister of your wife its just like a org chart but be mention every thing very clear other wise again they revert back and its waste your time then provide him additional documents
if your are indian then both sister passport is enough to show same father and mother name but any way provide him max documents which is their marriage certificate their education certificate which show their parents name
from canadian sister side they need their bank statement if easily arrange bcz no body give you their personal information but try
their indian passport copy
their landing paper
their utility bill which proof they still live their
but again i clear you family chart is must which show your relation on a quick way dont make any complex chat
just try i hope every thing is done good
Dear captain/Vice captain and all seniors,
Regarding Proof of relationship,
My sis-in-law ( wife's sis ) is in canada.So how to show the proof of relationship that she is sis of my wife?
PR card copies and all docs she can send but how to prove that she is real sister of my wife?!!
thanks in advance,