Partition among brother's

Hello madam/sir, my father are 4 brothers,their father(Grand parents),were no more now, my father is first son to his family ,when he entered into his family business all his brothers and sisters were small kids like at age of just of around (9 to 10)yrs old but my father struggled a lot along with his father for his family ,we are living outside from last 30yrs from our ownhouse,now my father was decided to make partition of our houses,actually ,we have 3 houses ,but we dont even known the ackres of land it is ,so we my father asked her brothers abt partition all are agreeded with my father's decision. but, one of his brother,who is next to my father ,he is 2nd brother in his family and all considered land papers of all houses and all regarding docmnts are with him .he was stolen form his father when we are in join family,so,he is not agreeing to partition nor giving land papers of any one ofhouse and in,reversly he is giving warning to my father and mother with ultering brutle wrds,and now he is saying all three houses need to be divided into four parts means one single room in onehouse for one brother ,how it is possible ?,its nt not a right way ,and that to he prefrered to need only front phase of house ,and not coming to forward to make face to face discussion .my father was so afarid of this things and suppering from highly fraustated mindset . so, please ,I request u to ,kindly suggest a vaulable suggetion towards our problem,in what way can we fight against this issues ans i n what way can we get our own property to make ahouse on it. Thanking you sir/madam, f Thanking you, vanukar sowmya