Section 169(10) in The Bihar Motor Vehicles Rules, 1992
(10)The fees which may be charged by the testing institute for such checking of a design shall be five hundred rupees, for the design of a trailer having maximum laden weight upto 10 metric tonnes and one hundred rupees extra for additional metric tonne, or part thereof, subject to a maximum of one thousand rupees, and shall be paid by the applicant to the testing institute on demand by it, and shall not be refunded once the design is checked irrespective of whether the design is approved or not.
