Claiming ancestor property - statement for court and land records

My grandfather died in the 1970s leaving two sons and one daughter and 9 acres of ancestral land situated in Muzaffar Pur village, Bihar. we are from Muslim family Without accounting for their sister’s rightful share, my father and his brother divided the entire property equally between them. My father subsequently obtained a new Jamabandi number from the Land and Revenue Department, Bihar. I have been unable to locate the original Apsi Batwara document, which I understand is necessary for some record corrections. In the 1980s my uncle executed an absolute sale deed in favour of my aunt, and therefore he ceased to be the owner of the portion sold. Some smaller parcels were sold by my uncle and those sales were witnessed by my aunt. Mutation for a part of the land was refused by the revenue officer on the ground that my uncle did not hold a Jamabandi entry from which the sold portion could be deducted. A different sale by my aunt did receive mutation and no objection was recorded by the revenue staff. My uncle died between 2010 and 2015. My aunt died between 2000 and 2023 and left no legal heirs. Certain portions of the land remain recorded in my grandfather’s name. I seek declaration and possession of the remaining land recorded in my grandfather’s name as my ancestral share. I ask the competent court and the Revenue Department to recognize my title and to direct necessary correction of records and mutation entries to reflect my hereditary right.