Power of attorney

my grandfather had a property in punjab in his name. He died and has 3 legal heirs includin my father, Both the other siblings gave poa to my father of their share of inherited property, Now he wants to register the property. Can he register in his name ? Can he make a gift deed to wife/ son ? Its a generl poa, i consulted a couplw f people, some said it cant be gifted some said it can be pls clarify , neone wid expert advice Thanks.