As far as my knowledge goes, not having your name in your wife's PP should not be a hold up for your RP. You would not have got a visa to bring your wife in , if that was a hold up. Its simple logic, I am not sure of this though. If you need to include your name, then the Indian Embassy will issue a new passport, but the existing one will be cancelled. If you have already got the RP stamped in your wife's existing passport, you can always get it re-stamped in the new passport by approaching the Immigration Dept. Better let the RP process continue as it is. Go for a new passport only when u need to.