Asking for help to place need over greed

Hello, I'm from Rajasthan. My grandfather expired 25 yrs ago until which he used to live with my father n mother n grandmother while his other off springs (my father's siblings) away with their respective families in different states of the country. And he did not write his will. although there is nothing much in his name of will except his home and some area of it converted into a small provisions shop- the only livelihood of my family; in which my family of four live with no other means of shelter. my father has four siblings including two brothers and one sister all well to do background with own house and well to do means of livelihood. Now with the demise of my elder uncle things have started to become uglier with his daughter (married and settled with the only heir to her fathers property in Ahmadabad) harassing us for her share in this house along with her my fathers sister has same claim. Knowing that they wont let us live in this house with peace by continuing their harassment, do we have a way to disband them from their claim? Can there be a way to help us have our righteous home in peace? The reason being they are just greedy and the value of this house would be nothiing more than 25lacs which when divided among all the siblings wouldnt affect much for them but for us it is our home. Please help me with some advice.