S. R. AYYAR, C. J. : These appeals have been filed against the judgment of Srinivasan, J., issuing a writ of certiorari and quashing the order of the State Transport Appellate Tribunal, Madras, dated 29th April 1959, granting a stage carriage permit to Sambandam, the appellant herein. The route in question is between Vellore and Arcot, and it has been conceded throughout that the traffic over the route has been at all times very heavy and wayside passengers suffered greater difficulties than those at the termini to get accommodation in the existing bus service Previous to the grant of the permit now in question, the entire stage carriage service over the route was in the hands of Khader Sheriff, the first respondent in the first of the appeals mentioned above. He was running seven buses, and on 26th May 1958, he was even able to secure from the Regional Transport Authority, Vellore, permission to increase the seating capacity of his buses and to run additional trips the number of trips per day having been increased from 56 to 70. Even before the increase of trips granted, there was a general direction issued by the Government to increase the existing number of stage carria