Not getting property approval from one of the family member.

Hi Sir / Madam, We have one property, where we have constructed two house with common wall, one the north facing and another the south face, The north facing house constructed by my father now around 14 years going to complete and south facing hose constructed by myself now 5 year going to complete. Around 14 year my farther paying house property tax for he constructed the house ( North face ) but I'm unable to get confirmation / approval from my uncle due that unable to get house number and not able to pay house property tax (south face) The property land is registered with my grand father name (Natham Patta), As per legal heir there are total four members (two males and two females), we don't have objection from a females heir but my uncle now making noise post my father death and asking share into that property. post construction both of the house after these many years now he asking land instead the amount. now no idea how to deal with such kind of situation. he is not ready for discussion as well. Is there any other option to get house number so that I can pay house property tax since last five year staying in the south facing house, I did applied new EB connection using my father's North facing house property tax receipt, I'm using the EB connection around five year. Kindly assist me on the same and how I can proceed further. Many thanks for kind consideration.