Flasher is a device used in vehicles or machinery to emit a flashing light, typically for signaling or alerting purposes. In vehicles, flashers are commonly used as indicators or hazard lights to warn other drivers of a potential hazard or when the vehicle is stationary on the road.
If red or blue light is affixed to a hired vehicle, then such hired vehicle shall be used only for official purposes and only when the concerned dignitary /official concerned is using such vehicle himself or herself. Use of such hired vehicles with red or blue lights beyond office hours for non-official purposes is strictly prohibited.