The property purchased by your great grandfather was already partitioned among his sons.
They have become individual owners of their own shares by that position.
In turn your grandfather divided and distributed his share in the properties among his sons by another partition.
This confers title to the individual shareholders as absolute owners.
Thus the property cannot be considered as ancestral property since it has lost its nature once it was partitioned among your grandfathers.
Thus the property in your hand now is not ancestral in nature or character.
Since the property was transferred by your uncle to your name by a registered sale deed, you shall be the absolute owner of the property with marketable title conferred on you.