Section 237 in The West Bengal Motor Vehicles Rules, 1989
237.
(1)Grab rail. - A grab rail shall be fitted to every entrance or exit, other than an emergency exit, or a public service vehicle other than a motor cab to assist passengers in boarding or alighting from the vehicle.(2)Steps. - (a) In every public service vehicle other than a motor cab, the top of the tread of the lowest step for any entrance or exit, other than an emergency exit, shall not be more than 43 centimetres or less than 25 centimetres above the ground when the vehicle is empty. All steps shall be fitted with non-slip treads. Fixed steps shall not be less than 23 centimetres wide and shall in no case project laterally beyond the body of the vehicle unless they are so protected by the front wings or otherwise that they are not liable to injure pedestrians.(b)In the case of a double-decked vehicle-(i)the risers of all steps leading from the lower to the upper deck shall be closed, and no unguarded aperture shall be left at the top landing board;(ii)all steps leading from the lower to the upper deck shall be fitted with non-slip treads;(iii)the horizontal distance from the nearest point of the riser of the top step to the vertical line passing through the nearest point of the seat opposite to the top tread of the staircase, excluding any grab rail which does not project more than 8 centimetres from the back of the seat, shall not be less than 66 centimetres;(iv)the outer stringer of an outside staircase shall be so constructed on a band shall be so placed as to act as a screen to persons ascending or descending, and the height of the outer guard rail shall not be less than 99 centimetres above the front of the tread of each step.
