• Title of my land changed without registration by me and even Iam in possession of land

Sir,
 my father bought a land in my name in 1962 and had been in possession till now in 1995.
 i have done R.O.R in my name they issued me passbook but not having title deed no proceeding.
 the problem is as below in pahani
 in pahani in same survey number there are 4 members along with me and two of them are sharing one extent. example 
"A" - 1 acre,"B"- 30 gunta," C and D"- 20 gunta .I am "A" and in 1996 "B" is changed with pattadar "P" who has sold his total extent to A,B,Cand D and who is not in possesion and might have died .
"A"-1 acre,"P"-30 gunta,"C and D"-20 gunta
 in1998 as a fault they removed my name and mismatched the other 3 members as such 
"P"-1 acre,"C"-30 gunta,"D"-20 gunta. (as iam a postal employee and not aware of the change) continuing this upto 2009 
then the person "B" appears in 2010 with 40 gunta reducing 10 gunta from "P" and making extent 30 gunta and "C and D" with their original 20 guntas
as iam old 59 years age in 2014 december hasn't seen revenue record and i sold my other property of 2 acres which is sideby the 1acre extent to "B"(he know that i dont have title deed), and he assured that he will do partion but he hasnt done and removed the boundary stones from the property and he is now on my three sides of my property
when i found what was happening i searched for records and got record of 1-B is on my name upto 2010 and doesnot know whether it is there afterwards or not (revenue officials are just ignoring and telling me to be first in position of land physically) and later on the dead Pattadar has got the 1-B in his name and "B" also got 1-B ,
now when we we made survey with revenue inspector, "B" is saying that he got 40 guntas in 1983 from "P" and in 2010 with seller party grandson as witness he got that land but he is agreeing that 30 guntas belongs to me but he is threatening me that he will bring pattidar grandsons also if wanted if we asked the 10 guntas.
sir one positive outcome is that the 2acres which i sold, mutation is rejected to him (I dont know the reason). 
sir what i have to do iam old 63 years of age please help