Again, that rarely occurs. Generally when spouses are married in a country such as India or in any country, they have to be sponsored in order to be able to return. If they apply for a visitors visa, they're very likely not going to get it. However, there would be a mechanism to make that easier if the person undertook not to file a sponsorship application from in Canada and actually was required to file from outside Canada before they applied for the visa.
On November 1st, 2011. See this statement in context.