Section 74(12) in Delhi Motor Vehicles Rules, 1993
(12)Method for indicating Fare, etc. -(a)every Mechanical or electronic digital meter shall be so constructed as;(i)to indicate upon the dial in suitable slots or on a suitable digital display consisting of Light Emitting Diodes (LEDs) as the case may be, the amount of fare calculated by time or by distance in kilometers, and(ii)to have a flag showing by its position or to have window with illuminated words showing whether or not the meter is in action(i.e. "Hired" or " For Hire" or "Stopped").(b)information to be given in slots of a mechanical meter or on digital display of an electronic digital meter, The nature of the information given in each slot of a mechanical meter, or a digital display of an electronic meter, shall be indicated by suitable working immediately above or below the slot or digital display, as the case may be. The words or signs denoting rupees or rupees and paise shall be placed immediately above, below, or beside the appropriate disc or drum positions.(c)if it is an electronic digital meter, it shall be provided with two switches "Meter Switch" and Stop Switch" for operating the meter and shall also be provided with a "Roof Light" synchronized with the operation of the meter;(d)mechanism and operation of an electronic digital meter. The mechanism of an electronic digital meter shall be so designed that-(i)(aa)the "For Hire" window is illuminated when the Roof Light is " On"(bb)the "Hired " window is illuminated and the Roof Light is turned "Off" when the meter switch is pressed "On".(cc)the "Stopped" window is illuminated when the "Stopped Switch" is pressed "On".(ii)it shall not be possible to set the meter in any position other than the three positions mentioned in sub clause (i) above;(iii)the fare by time ceases to be recorded when the meter is in the "Stopped" position;(iv)the fare by distance is recorded off the meter if the taxi cab or Auto Rickshaw is driven with the meter in "Stopped" position;(v)the fare recorded is not obscured when the meter is in the "Hired" or "Stopped" position;(vi)when the "meter switch" is turned off, the "For Hire" window is illuminated, the "Roof light" is turned on and the previous record of fare is cleared and the various mechanisms of the meter are brought back to the initial positions;(vii)the mechanism for recording time and distance cannot be engaged or disengaged except by the normal sequence of operation of the switched referred to in sub clauses (i) to (vi);(e)Every meter shall be so made as to be capable of being sealed by seal of the type specified by Commissioner Transport by issuing specific instructions in this behalf, after the meter has been tested and approved(f)In case of mechanical meter, the mechanism driving wheels of the chassis gear-box attached to the cab.
