30. Violability of transfers made in contravention of section 28 or section 29-
A disposal of immovable property by a guardian in contravention of either of the two last foregoing sections is violable at the instance of any other person affected thereby.
Section 30 has no retrospective effect. The statutory prohibition against the disposal of property by certified guardian without sanction of the Court cannot refer to transactions antecedent to the Act.