It only means that decision on your eligibility to sponsor your spouse has been verified and it has been approved, your file will be sent to delhi, if not already,, and from then onwards , it can mean anything... we have all sorts of cases on this forum where passport has been requested within a month of file reaching to new delhi as well not been requested even if the file have been to new delhi office for more than 6 months, AND ON THE TOP OF IT, even if they request your passport it can take anything between 3 to 8 months before they respond back with Decision Made on the PR Application...
go through some of the past post few pages and you will get an idea about what sort of time lines everyone have...