Dear Client,
In the Present Scenario, the 8 acres of land in question, are inherited by your father from his adoptive mother, and is hence not considered as an ancestral property, as such property refers to those passed through at least four generations of male lineage. Hence, this may be considered as a self-acquired property of your father, and therefore, he had an absolute right to transfer it to one of his sons, either through a gift, sale, or any other means. According to the Hindu Laws, a person has complete control over their self-acquired property, i.e., your father could legally give the land to one son without needing the consent of the other heirs. However, if the transfer was done in an improper way, without following proper legal documentation works, the other brothers and sisters may challenge the transfer in court. The same may be challenged on grounds of fraud, coercion, or mental incapacity. However, if the transfer has been done as a gift or through a will, there may be no challenge raised to the property ownership or transfer. On the other hand, if your father had passed away, without writing a will, the remaining heirs could seek their share of the property.
Hope you find this answer beneficial for resolving the dispute.