Section 151(2) in The Bihar Motor Vehicles Rules, 1992
(2)The stability of a single-decked public service vehicle other than a motor cab and maxi 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 rests was tilted to either side to an angle of 35 degrees from the horizontal, the point at which over turning occurs would be reached.
