How father’s ancestral property will be divided among his successors?

My maternal grandfather had 7 successors (4 daughters + 3 sons) elder son has died (in army war at kargil) leaving behind his wife n two sons. Now 2 sons 1 daughter in law and 4 daughters are there. One of the two sons left has made a house on residential plot of that ancestral property from his own earnings + Indira Awaas Fund given to his father. Now what will be the share of all successors and how will that be devided.