Section 5(2) in The Delhi Metro Airport Express Line, General Rules, 2010
(2)Issue of certificate of competency.- No Delhi Metro Airport Express Line employee shall be assigned any duty under these rules unless he has passed the examination as regard to his technical ability and skills and his knowledge of rules, regulations, procedures and manuals relevant to his duties and has been issued, after being found fit, a Certificate of Competency by the Authorised Officer specifically authorised in this behalf.
