Leon said:So your wife doesn't actually want to immigrate to Canada, she only wants to visit her aunt? Her aunt can write a letter saying that she is inviting her and will take care of all expenses etc. but your wife still needs to apply for a visit visa and prove that she is only coming for a visit and will return to her home country after her visit.
Sir Leon thank you also for having time reading my query. I have posted reply to Sir BeShoo, I will be glad to here your opinion too. Again thank you Sir!