Husbands rights over wife's property

As you are the owner of the flat, you can file a suit for possession against your in-laws.

You being the owner you can dispose the property as you like. You can file suit for possession against your in laws.

Suit for possession is expensive. Since the occupation of the house by the Inlaws is that of a licencees why not a suit for Mandatory injunction directing the inlaws to put you in posession of the house. There is decision on this score by the Apex court as early as in 1981

I concur with Deekhitulu Sir. 

You can file suit for eviction against him.

In my opinion, he is only a permissive occupier and is not entitled to claim adverse possession.

when a person illegally dispossess the rightful possessor, and continues in open, peaceful, and continuous possession (which is adverse or hostile to the possession of the true owner) for a period of 12 years (the limitation period for filing suits for possession), he can claim that he has a better title due to adverse possession.

The Supreme Court has followed suit by recognizing this changing view. [See, P.T. Munichikkanna Reddy and Ors. v. Revamma and Ors, AIR 2007 SC 1753]. The disapproval of adverse possession law was strongly re-iterated by the Supreme Court in Hemaji Waghaji Jat v. Bhikhabhai Khengarbhai Harijan and Ors, [AIR 2009 SC 103]. The observations in both these cases could be useful to you.

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