Property Distribution

This matter is related to state of Rajasthan Our family structure : my Late great grand father and there 4 son's(ie my grand father's) and there son's(i.e my father and there siblings) Actually we are joint family. everything(i.e Properties) is in the name of my great grand father but some properties was registered in the name of there son's (i.e among my grand father's). But from past 10-15 years daily there is fight regarding distribution of property but same never happened and as the time passed 2 among 4 my grand father's died, but property distribution never happened. I Have 2 issues with regards to property. 1. After death of my 2 grand father's, there son(i.e my fathers sibling) from past 4-5 years every one is selling property as they like which was in there fathers name and now demanding the property which is in the name of my grand father. 2. I and my father stay oustside state of Rajasthan for business and study purpose. But due to ill health condition from 1 year again sifted to Rajasthan. When my father demanded division of property which is in the name of my grand father. That property is rural agricultural land which is been utilised for farming by elder brother of my father. After asking property my father's elder brother and his sons are applying mental pressure and doing coercion on my father for that property. Actually what i want is total division of property which is in the name of my late great grand father and late grand father for my father. I am CA-Final Student staying away from my parents in Andhra Pradesh, could't advice my father regarding this matter and due staying away, i could't support my father as of now. so Please do advise what appropriate step we can take for division of property.