1. A property can be gifted from brother to sister in the form of a registered gift deed.
2. It is not necessary to take wife's consent because the property becomes the self-acquired property of the donee when his grand father gifted the property to the present donor.
3. Since the property has become self-acquired property of the present donor, he can dispose off the property in any manner he desires and his wife's & children's consent is not required. Minor children also do not have any right in father's self-acquired property.
4. This cannot cause an issue later at any point.
5. A gift of a property from grand father to grand son becomes a self-acquired property of the grand son, subsequent to the execution of gift deed. Confirmation deed has no relevance here.