When it comes to wife seeking rights in "shared household," the first line of defense is to exploit the Supreme Court's decision in Batra v. Batra (2007) 3 SCC 169. The Supreme Court has narrowed the interpretation of "shared household" to mean
“As regards Section 17(1) of the Act, in our opinion the wife is only entitled to claim a right to residence in a shared household, and a `shared household' would only mean the house belonging to or taken on rent by the husband, or the house which belongs to the joint family of which the husband is a member."
What that means is if the house does not fall in the definition stated above, then she cannot seek any right of residence on it. What if the house was purchased by you but does not stand in your name? The burden of proving that it was actually bought from your monies is on your wife. Also, are you living in a joint family. You need to understand that term from a legal perspective.
The right to residence requires a thorough analysis of the facts of your case. If you provide the facts to me, may be I can offer some advise if I know of a way around it. That said, I must tell you that I am not an advocate but have thrashed my adversaries in DV, divorce and other cases, all the way up to High Court, all on my own, while my ex-wife had an army of advocates.
Good luck to you!