Mentally harrassment, threat to kill

I am a lady of 40 years of age residing in Delhi, having husband and 2 children aged 16(boy) and 18(girl) years. I was married in 2000. In 2001 when I was alone at home, my father in law greed me that i will give my property and jewelry to you and dont tell your husband and started touching and rubbing. Eventually my husband came and I escaped myself. I told my husband about this incidence, he told this to each member of the house. We left the home then and lived in UP for 17 years. Within this time we were in contact with my mother in law. Within these years she often came to our rented house and tried to convince us to come back because she was unhappy with my brother in law and his wife. Afterall we returned to Delhi at our home in 2018. Now from last 2 years things changed and now are on a peak. Both mother and father in law are quarrelling daily, giving threat to kill my husband and my child, daily mentally harrassment, are very abusive, saying to leave their house. Brother in law is also in their side. Saying that they will not give me a single penny and property/ land. We are searching a rented house now. What legally I can do. Which case can I file against them. My husband is in my support, he is also a victim of them.