Father's harassment and threatening to evict me from home where I also contributed to buy

Namaste, I am 42 years old male. It may sound unrealistic, but my father has been harassing me since my childhood, abusing me mentally, physically, as well as financially. In 2006, I contributed (25% approx) towards a property purchase, however, it was bought on my mother's name. After 5 years, he sold that house at a 6x of purchase price (got a great deal while purchasing and also a great property boom!) and with that money, he bought another house, and it was registered in his name only. I have been living here with my parents since 2012 (I don't have wife/kids). I have been taking care of all the household expenses since I started earning in May 2005. Although I lived in another city between 2010 to 2012 and from 2017 to 2023, I continued paying for groceries, gas bills, house repairs, etc. Not only that, I gave him around Rs. 17Lakh over the last 7 years. He met with a small accident and was bed ridden for 3-4 months. So, I moved back with him so that I can take care of my parents since their health not good due to old age. However, the moment he started getting better he came back to his original behavior and started abusing me mentally as well as physically. Even after all these financial contributions, he has been mentally harassing me saying that this is his house and I'll kick you out. Also, he wrote a hand-written will stating that he is exiting me from his property and networth. He seems to be mentally sick and unstable due to age and medicines (diabetes, heart) since 20+ years. As a son, an educated person, and culturally groomed, I never misbehaved with my father (although he has been dominating and abusing me since my childhood). He never gave me all the required money for my education, I had to borrow from my brother-in-law, but the moment I started earning he started taking money from me saying that I spent a lot on my maintenance and education, so now I need to pay back. I always gave money to him for family maintenance thinking/assuming that it's OURS. But he has always been saying that all these are HIS own, and I do not have any rights on anything. He is trying to sell this property and threatening me to kick out without a single paisa. Please help me. Please guide me. How can I get rid off these mental, physical, financial harassment and get justice for the money paid to him. Thank you very much. God bless you for helping me get justice.