A respondent in an appeal, if he has not filed a cross-appeal, is deemed to be satisfied with the decision. He is, therefore, entitled to support the judgment of the first officer on any ground but he is not entitled to raise a ground which will work adversely to the appellant. In fact such a ground may be a totally new ground, if it is purely one of law, and does not necessitate the recording of any evidence, even though the nature of the objection may be such that it is not only a defence to the appeal itself but goes further and may affect the validity of the entire proceedings. But the entertainment of such a ground would be subject to the restriction that even if it is accepted, it should be given effect to only for the purpose of sustaining the order in appeal and dismissing the appeal and cannot be made use of, to disturb or to set aside, the order in favour of the appellant