It was issued as per a government order and rule-108 of the Central Motor Vehicle Rules-1989, which states that the mayor does not have the right to use beacon light on of ficial vehicle.

Telangana: No more beacon light atop any vehicle. Nation. DC Correspondent. 3 May 2017 2:01 AM IST. Coloured lights for designated duties. x. Under Section 177 of the Motor Vehicles Act, ...

In an attempt to bring some clarity to proceedings, Uber has today introduced Beacon, a new light that attaches to a driver's windscreen and displays a color that you specify in the app.