What to do my mother mentally harasses me

Respected Sir/Madam, I am 22 year girl. I have been experiencing the extreme Mental Harassment from my mother since 1.5-2 years. Harassment is about to get married immediately. I have just completed Masters and I want to study further. She is using A words like, "I must have done abortion at your time" and so many. She is calling even to my friends continuously. My all friends have stopped talking to me. Home is in the name of my mother, so she is continuously saying you do not stay at my home now. Give me a date when you will leave. She even calls me when I am in travelling/ in office. And now she is threatening me that if I do not agree to her, she will go to police against me. I have not even used single bad word to her. I recently applied for passport just as A documents which will help in future. When I informed her this, she started harasssing me extremely and she is threatening me that when passport will come I will tore it in front of you. Kindly help in this situation.