regarding a joint house property which is partially distributed

there is a self acquired house which is in the name of my grand father and during his life time they distribute the house in 5 parts one for himself and rest 4 parts to 4 sons equally, now grand father and grand mother is no more and as per the court decree my father has his 1/5th share, now the rest brothers don't want to distribute the fathers share and my father wants to distribute share as my father's and grand father's portion of house is joint and rest brothers house is separate so I am having difficulty in selling my 1/5 th portion I just only want my share 1/4 th portion from my grand father's property to sale my portion of property easily so please suggest me what I do and take from my brother to get my share and easily sale it please suggest