Section 244(2) in The West Bengal Motor Vehicles Rules, 1989
(2)The fuel tank of every public service vehicle shall be so placed that no overflow therefrom shall fall upon any woodwork or accumulate where it can be readily ignited. The "off" position of the means of operation shall be clearly marked on the outside of the vehicle. The filling points of all fuel tanks shall be outside the body of the vehicle and the filler caps shall be so designed and constructed that they can be securely fixed position.
