Notice of adoption if heir has been prior to passing of Act

In any case in which, before the coming of this Act into force, any registered representative watandar or his widow shall have adopted an heir, notice of the same shall, within twelve months from the coming into force of this Act, be given by or on behalf of such adopted heir to the Collector, who shall register the name of adopted such heir accordingly, But if such adoption shall be shown to have been or shall subsequently be set aside by decree of a competent Court, the Collector shall remove such name from the register.