Held, the order passed by the Settlement commissioner under the Customs Act, 1962 is within the judicial proceedings and a judicial order is pronounced thereto - The impugned order of Settlement commissioner have not challenged by the Appellant ever. Thus, where the Appellants has not challenged the order passed by the Settlement Commissioner then it is presumed to be accepted by the Appellant. It will operates as Res Judicata between the Parties-Appellants cannot now turn around and say that the Tribunal erred in passing the impugned order on the basis of the same. The appeal is dismissed