Section 277(2) in The West Bengal Motor Vehicles Rules, 1989
(2)In a public service vehicle-(a)no part of the producer shall be placed within the passengers' compartment;(b)the generator shall be placed in rear of the passengers' compartment, either completely outside it or recessed in the rear panel, and shall be inserted lated and have the clearance prescribed in rule 278 of these rules;(c)in the case of any generator fitted in the rear of a vehicle and to one side of the vehicle, suitable means shall be taken to compensate for the additional weight by inserting one or more leaves in the real springs of the vehicle at the side :Provided that notwithstanding the provisions of these rules, the generator and a reserve of fuel not exceeding 69 kilograms in weight may be carried on a trailer attached to a public service vehicle.
