This is regarding agricultural lands that got registered on my father's name on June 2023 based on District court decree obtained on 2020 after taking due legal advice from High Court of Andhra Pradesh Lawyer. My Father got rights over agricultural land through family agreement and he was under complete possession of those lands for many years doing agriculture however they were not registered until June 2023 due to lack of adequate funds for registration. His sisters filed court cases twice once in Sessions/Civil Court & In District Courts and failed to obtain judgement for partition of those lands due to Family Agreement produced before court of law. Now after 3 years, Feeling Jealous that my father obtained legal possession of those lands, they are threatening to file another case in court of law causing mental harassment to my 75 year old father. How can we refrain them from filing another case on my father ? If they do file a case how do we need to proceed further.