Harassment by grandmother and uncle to leave the home

We are staying in 3/10/112, Hanuman Street, Near Bank of India, Valsad since my parent’s marriage in 1985. My grandmother lives at Laxmi-Narayan Society, Near LaxmiNarayan Temple, Kochar Fadiya, Valsad with my one uncle. After my father’s death I and my mother are getting socially and mentally harassed to stay in my grand-father’s home. Because of this issues I am unable to focus on my career and feeling stressed. My grand-mother(dadi) and my uncle are forcing us to leave our home and we have no financial and mental safety. My mother had done entry in city survey to add names of all heirs of my grand-father but my grand mother(dadi) filed complain in civil court to remove other names with fraud will of my grandfather where my uncle did signature on behalf of my grandfather. During the period of the case my mother was suffering in cancer and we were not able to afford any advocate. Now my grand mother(dadi) wants to sell the home and if this home will be sold we will not have any place to live. I have not much legal knowledge, but have a question if my grand father had done will why did they brought after my mother did entry all names in city survey. They could do it when my father was alive. My grand mother is saying that if we will re-open the case she will take loan on the home and will keep home for mortgage. My dadi and my uncle comes daily to give stress to my mother to sell home and leave the home. I don’t know what I should do in this case. My father died because of same stress.