Kanhaiya Singh, J.

1. These are 62 applications under Article 226 of the Constitution, the first thirtyone by various persons holding permits to ply motor vehicles on public road, hereinafter referred to as the petitioners, for a writ in the nature of certiorari to call up and quash the order of the State Transport Appellate Authority, Bihar (hereinafter referred to as the Appellate Authority) dated 12-12-1959, and the remaining thirtyone by the Bihar State Road Transport Corporation (hereinafter referred to as the Corporation) for a similar writ to quash the order of East Bihar Regional Transport Authority Bhagalpur (hereinafter referred to as the Regional Authority) dated 26-9-1959.

The Regional Authority and the Appellate Authority are opposite parties in all these applications. The Corporation is one of the opposite parties in the first thirtyone applications, and the different petitioners in those applications are opposite parties in the last thirtyone cases. Both the petitioners and the Corporation challenge the legality of the different orders passed either by the Regional Authority or by the Appellate Authority in the same proceedings, and in fact the grounds made o