thanks dear...
no I did not specifically show anything to prove she will come back... I showed her bank statement with initial application to prove that she has enough money to travel and thats about it... besides that her employment history, education, documents from my side, my bank statement... they know that a wife aint coming back from her husband so to show that my wife would be returning would have been trying to fool them... the whole idea of Spouse open work permit is that a spouse can be with her partner till whatever time the partner is there. so i think its not required... maybe they are required for VISIT visa for which m not sure...
hope it helps
Thanks