How to apply for pattadar passbook if person with passbook dies

My mother has property inherited,he has pattadar passbook for the same,there is portal called me bhoomi in ap, in which my mother name was uploaded wrongly in portal,even after complaining on this on online ,tahasildar is rejecting saying no proper evidence. but as per pattadar passbook name was correct. I have following doubts Should the name to be changed in online portal me bhoomi ?is it mandatory? Do we need to take new passbook on our father name as he is the guardian?how to be proceed? OR else how we can divide the land based on the wish of my mother to our names as there is no documentation or will (As my mother has 3 daughter and 2 son and one son passed away) i was the last son i want to know how to be proceed on this as it will create problem in future if we even want to sell the property my main doubt is is my mother passbook is valid even after death of person? As my mother is passed away in 2004 we have not checked any thing on this how to get new passbook if not valid? which one is suggested should we tranfer our property to my father and then to us?or else can we apply for new passbook who is his son and daughters how the property can be inherited? i want to know who is legally authorised to inherit my mother property?