Section 123(8) in The Bihar Motor Vehicles Rules, 1992
(8)The Regional Transport Authority shall not authorise the use of a contract carriage for the carriage of goods save for (a) special reasons in particular occasions and subject to conditions and restriction to be specified in the permit, or (b) the carriage of the personal, office or household effects of a hirer if so authorised by the permit but not the carriage of general merchandise.