Section 33(2) in The Bangalore Metro Railway (General) Rules, 2011
(2)The Train Operator of a self-propelled maintenance vehicle which is permitted to operate on running lines shall hold a certificate of competency as a Train Operator or to be accompanied by a person holding certificate of competency, and in the later case, the person holding the certificate of competency is responsible for the observance of these rules in respect of the operation of the vehicle.
