Sale of property by father

If it is his self-acquired property then he can do whatever he wants to do and can sell it anyway he wants. You and your brother can challenge it only if it is ancestral property and then you will have a share in the property and you can challenge this sale. You can refer to - https://www.lawfarm.in/question/distribution-of-ancestral-property and https://www.lawfarm.in/question/ancestral-property-sold-illegally

The opinion expressed by Lawfarm Team holds good.