Section 36(2)(i) in The Bangalore Metro Railway (General) Rules, 2011
(i)If platform edge door local panel does not receive indication of the doors open or doors close command signals from the signaling link, then the train driver or maintenance staff can provide this indication to Platform Edge Door local panel by using platform screen door local panel with the help of staff special key and after receiving open or close indication on Platform edge door local panel, Baggage Handling operator can open or close Platform Edge Doors.