Seeking in laws property on the pretext of streedhan has been an age long malpractice among married females across India. 
Unfortunately, our law supports them and favour them in doing so. That has given them the courage to rob their in laws or husband, under the influence of arrogance and pride.
More than 80% of the cases against husband and inlaws in the family courts or magistrate courts are false charges and baseless. Mostly been filed just to threaten the counterpart and extortion. 
The woman who is faithfully living in her wedlock would never want to take control of the properties, money or materials over love of her husband and compassion from inlaws.
Now, when it is happening to you, my recommendation is to approach the police first. 
If they give excuses for not filing your complaint, then approach your criminal court and file a case against your wife and her parents, presumably they are inflicting her.
Pursue your case strongly with evidences, and come out victorious. 
Demand for divorce from such a mean spouse. Seek help from court.