Section 50(4)(c) in The Delhi Metro Airport Express Line, General Rules, 2010
(c)the train operator of the assisting train shall secure his train and open the appropriate end door and ramps (if any) at the leading end and the train operator of the stalled train shall open the corresponding door on his train and the two train operators shall assist passenger to shift from the stalled train to the assisting train, the assisting metro staff or the train operator of the stalled train shall also take appropriate measures for in-train baggage tagging for identification of passenger baggage later;