Cancellation of registry

Dear Sir, As per HUF our incestral property has not been divided my father my three grand father name registered in paper during chakbandi in 1970 some how their name struck from document & my eilder Grandfather 's elder son name registered on whole property, which was not know till the death of my elder father, in the age of 85 year my elder father died then we come to know all the fact & involved in property dispute. my elder father only daughter claimed on all property then after mutul agree ment & payeeing money as per her requirement we have divided whole property in three parts then after her name registered on whole propery after that she made registry us 2/3 of property as keeping her grand father share in he name. registry was made in proper way by giving proper revenue for whole for register property. now after registry, she is started fighting for taking whole property though our name has been putted on document ( on khasra khtauni 0. she file cancellation suit for registry cancellation . she is creating all possible problem for us. she file 420 against me also. please advise me as per below: 1) how can i save my registry which has been done in our name. 2) though our grandfather name was register on whole property in 1969 on that basis we can check & get our Share leaving her grandfather share in her name.as her father was some how put her name on all property. 3) what should we do .