Section 228(2) in The West Bengal Motor Vehicles Rules, 1989
(2)The stability of a single-decked public service vehicle other than a motor cab shall be such that under any conditions of load, at an allowance of 68 kilograms per passenger and his personal luggage for which the vehicle is registered, if the surface on which the vehicle stands were tilted to either side to an angle of 35 degrees from the horizontal point at which overturning occurs would not be reached.
