1. To be classified as ancestral property, the property should have traversed for four generations without any break in the male lineage.
2. If the eight acres of land satisfies (1) above, then it's called ancestral property.
3. Based on above if it falls within the bracket of ancestral property, then he could not have given such land to only one of his sons.
4. If it were to be ancestral property, then the other brothers and sisters can challenge it in the competent Court to get their individual shares.