Wife Harrasing and thereatening me and my family

I need a suggestion in my case. We married in 2014, and after spending 7 days at my home town, we moved to Bangalore together. Within three months i got a offer from abroad and in a month, my wife joined me there. Initially things were not that much bad, but because of her abusive behavior, things got worst. While staying together in abroad also, she used to abuse me and my family if i try to do something for my parents like monthly expenses and other help and they don't have any other income source. Unfortunately, i lost my job in 2016, so we returned back to India. She did not come to my home, instead she stayed with her parents and was not ready to come my home. All the time she used to send messages through Whatsapp and email. All the time, she is threatening me to put my sister family and my parents in jail for dowry and harassment case. All the time she text me like my sister and my mother are slut, bitch and my father is broker to get customer for them. Also she abusing me like i have physical relationship with my married sister and my mother. She contacted all my relative and friends and neighbors and claiming that i am an impotent that's why i am not staying with her. Many times i told her to come to home, but she always abuse us like anything and says my home is in a small town and her living status is high, so she can never come back. Also will divorce me once my mother die. She was forcing me to file the divorce otherwise she will file 498A and arrangement case against my family. It's been 3 years we have got married and in last three years time period, she never stayed even a month at my my home town. From last one year, she is staying with her parents and i moved again abroad with a new job. Now she was again forcing me to take her, otherwise she will file dowry and harassment case again my family. All the time she writes me emails with unstoppable abuse as BC, MC to me and my parents. Sometimes, i feel like do something with myself to finish this chapter. She herself saying that she don't want to stay with me and want to get marry again but only when my mother will die. One thing i know that with such abuses it's impossible to stay again with same person. I want to know whether i can file a divorce case in this scenario and how will it impact in my case. Many of my friends suggested to not to file the case as it will make her part strong in court.I don't know what to do here as day by day i am suffering with mental torture. I have all the her emails, chats and audio saved with me. Please guide.