The arguments of Mr. Chatterjee, learned Counsel for the appellants maybe summarized thus: (1) This Court held in Gullapalli Nageswara Rao vs Andhra Pradesh State Road Transport Corporation that the (1) 584 Secretary in charge of the Transport Department was disqualified from deciding the dispute between the Department and the private bus operators on the basis of the principle that a party cannot be a judge in his own cause, and that, as the Chief Minister was in charge of the portfolio of transport, the same infirmity attached to him also, and, therefore, for the same reason he should also be disqualified from hearing the objections to the scheme published by the Undertaking; and (2) the Chief Minister by his acts, such as initiating the scheme, and speeches showed a clear bias in favour of the Undertaking and against the private bus operators and therefore on the basis of the principles of natural justice accepted by this Court, he was precluded from deciding the dispute between the said parties.