How To Protect Father's House From Relative's Possession.

i am age 57 from u.p. my grandfather had a plot of size 14x70s.f after his death plot had been divided 37 year ago b/w my father and uncle by self,both person had no objection from that property division and didnot write a division agreement on any letter.Each one got 14x35 sq.foot plot.my father construct a house on his plot 36 year ago by self investment and no one create objection.now father,uncle,aunty have been died .my mother still alive.plot as mentioned above14x70 khasra registered on my grandfather name in village town area land record.Now the matter of quarrel b/w me and my uncle's son 36 year age is that he is not believe on division of property saying in old land record of town area plot 14x70sq.f is registered on grandfather name and property division agreement not available so divide and give my shares from your house.i have 1. 36 year old house tax/house no. receipt in which 27 year house tax is issued by Father's name and after his death last 10 year tax issuing on my name.2.electric bill,water bill on my name. 3.father's death certificate and ration card.4.ancestral land khasra of grandfather name.father's house is under my pocession.Is it possible that relative forcely or by law capture shares in my father's house..