Can a father gift deed his ancectral property to his only son without the consent of his daughters and wife? If so, can it be challenged in the court of law?

The self-acquired property can be given or gifted to anyone according to the owners or donor's wishes without obtaining anyone's approval. But it is not the same with the ancestral property. So if you want to know can ancestral property be gifted without the consent of successors, you should give the following answer a read.