Section 168(2) in The West Bengal Motor Vehicles Rules, 1989
(2)Subject to the provisions of rule 166, any luggage or personal effects of any passenger, in excess of the weight that may be carried free of charge under sub-rule (1) may be carried in a Stage Carriage on payment of charges for such excess weight at the rates specified in the permit provided that the total number of passengers are kept limited to an extent that the weight of goods/luggage carried does not exceed the gross vehicle weight of the vehicle.