Section 29(2)(iv) in The Delhi Metro Airport Express Line, General Rules, 2010
(iv)such an occurrence may usually happen at a station and a terminal in which case the passengers shall be discharged at the station itself and to dispatch the train to the depot, the station controller shall board the train and act as look out in the leading cab while the train operator drives from the rear cab in Cut out mode Information on signals and cleared routes shall be passed by cab to cab telephone and train speed restricted to a maximum of ten kilometer per hour;