My father purchased a house in 1952 and bilt in 1961.My mother and father expired in 1983 without making any will. we r 2 brothers and 1 sister & got devided that house in 3 equal parts and living happyly.My elder brother is having 2 sons & 1 daughter.His elder son got love marrige and living seprately from his father in another house on rent. My brother got paralised in march 2014,all expenses for his treatment and routine house expences are beared by his second son. Now his elder son is demanding his share in his grand fathers property.
I would like to know his legal position/ share in that property ? Can my elder brother& bhabhi demand any bharan poshan from his elder son ? Please guide me .