Domestic violence and demand of money and robbery of jewellery

Dear Sir, I have been married for a year and three months now, it has been 9 months since I have come to my in law"s place to live with my husband. I lived a normal life for around 10 days in their house during which my sister in law was away. Once she came back she started turning my husband and mother in law against me. it kept on going until my husband physically abused me and i had to come out of their house for my own safety. My mother in law has also taken my phone away and tried to lock me inside the house along with my sister in law after i was abused and used extremely unparliamentary language when i struggled against her. My mother in law demanded money from my family and when my parents could not afford to give her the entire sum and sent her a part amount and she sent it back, so my parents doubled the amount and sent it to her again all of which happened via bank account transfer. She along with my father in law had also stolen gold jewellery that was presented to me by them during the wedding and blackmailed me. they agree that they took the jewellery and were also captured in the cc tv cameras in the bank while going to operate my locker but are lying about blackmailing me. Is this a punishable offence? Can they steal back the gold they have given me or does that come under Strri Dhan? How can i proceed legally against my in laws? Kindly reply. Regards Victim