Land dispute

Dear Sir, I am Navin Astunkar from Chandrapur, Dist. Chandrapur, Maharashtra 442401. Sir, I know from my childhood that my house has land dispute. but our elder family member don't want to come in any conflict and afraid of any kind of clash with neighbour. actual matter is that my house is ancestral porperty. It is too old that no one know when it was built. in that time my family member had left some space from back side for drainage line and built compound wall from inside. but our backside neighbor has grab that part of land later. Then built house on it. As nature of my father and other family member nobody was aware of that. after long duration that house is sold to another person. Now after so many year that neighbour stars rebuilding his house. This time our young generation try to stop them from doing so. then he ask me to produce land survey document. we show him document like '7/12', layout plan and map issued from 'Talathi' office but he is not agree on that he show me another document which we don't believe. he also tell me that our document has authenticity as we don't have any document issued from land revenue department. so we decided to go for land survey but land revenue department has said that as our land (plot) belongs to old layout . That time there were no land survey happened for new layout and for conducting land survey we need to produce copy of layout survey report other wise it must do first which cost lakh of money and then individual survey of plot can happen. so we stuck here but for first precaution we file complain in local police station but after that nothing is happen. I want to know that is there any way to take our land from those person and how and from where we can have that layout survey report or any legal document to which nobody can challenge it. please tell me, how to solve this land dispute