Section 77(1) in The Delhi Metro Airport Express Line, General Rules, 2010
(1)If the work is to be carried out adjacent to the electrical equipment or any other part there of by other than the competent Delhi Metro Airport Express Line employee, such work shall be carried out only when and for such time as the person in charge of the work has obtained a permit to work from a Delhi Metro Airport Express Line employee authorised for the purpose by special instructions which shall lay down the detailed procedure of obtaining, granting and canceling of the permit to work, ensuring utmost safety.
