A. Generally, Father can alieanate the property by representing minor interest as natural guardian for the benefit of minor children or legal necessity. However, the minor can claim the same over the joint family property within 3 years from the date of majority or from the date of knowledge. But, in case, the said property was inherited by your father from the grand father other than ancestral property that you cannot claim over the property.
B. However, in case, the property nature was ancestral or joint family property, you can claim the same by taking defense under the Section 5 of law of limitation by invoking condonation of delay and just i cam to know about the transaction like that. But it is very difficult establish before the court.