Hindu - wife and their family member threatening

I have married 10 months before, actually wife and her family provide fake details including her behavior, work and all. After marriage when i ask about the her behavior and her health details they start fight with me (actually me and my mother alone in the home), and then went to police station to give complaint on me and my mother, fortunately the police women enquires and identify the truth she gave counselling and ask us to live together. But after that again wife and their family start torture me and ask me to leave my mother alone and live with wife in a different house. when i refused for that they took all the jewels out from my home and wife also went out without informing me, and told we will put dowry case on you. i don't want to live wit her as the earlier days of marriage life is that much of pain. Now i want to separate from her ( looking for a divorce) and want to take legal action on their family too. Please guide me ( Note : Me and mom alone in the home so they threatening me by saying we will do whatever we can ) it seems like we are in a hard time without any help