About creating fake document from municipal councillor

Dear sir / Madem my wife property it is in name of 5sister & mother , the land is alloted from tasidar on 1985 to my father inlaw, upto date tax paid & old patta & Katha Original available with us, we ars in position since from 35 year, recently we stared to put fencing the other person who is staying next to our property he is creating a problem that we are occupying public road means( galli), he is not having any documents , even councillor supporting him & they sent municipal notice to submit the documents,when Revenue Inspector visited the site but they didnot identifiy the documents simply they created fighting through words they didnot speake about galli / Public property , again we went to municipal to submit documents even their all officers are supporting the opposite person & warrining us that municipal can do any documents & even we will burn the old documents of urs . so we have taken stay order from court , now they are doing fake documents khatha & motherdeed , what to do please replay