Thanks for your reply. So basically in my case I will just need one declaration for myself which I will need to sign and no other declaration needed for my wife and minor child right? I think they also have different format for declaration in Vancouver and in Toronto.
I am referring to Voter ID/Ration Card Declaration. It only needs to be signed by Canadian Parents. If one of the Parent is still Indian Citizen, that Parent doesn't need to sign Voter ID/Ration Card Declaration.