The Kerala High Court has directed the Kochi city police and Ernakulam district authorities to immediately issue an order prohibiting the private buses from using horns on city roads and ensure that they ply on the extreme left side of the road without overtaking each other. In the order dated May 31, Justice Amit Rawal also said the direction shall also be applicable to the autorickshaws plying in the city. He also ordered the installation of speed governors on private buses and auto rickshaws to prevent overspeeding by them.