Section 22 in The Bangalore Metro Railway (General) Rules, 2011
22. Absence of cab signaling.
(1)Failure of the cab signaling shall initiate an Irrevocable emergency brake application.(2)The train operator shall report the occurrence to the Traffic Controller and seek Instructions.(3)The Traffic Controller shall verify as far as practicable from indications on his diagram the problem is not caused by a track side fault or another train and if no cause is apparent, he shall instruct the Train Operator to select the Run On Sight mode and try to move ahead exercising utmost vigilance so that he may stop short of any obstruction.(4)If the train does not move, the Traffic Controller shall authorize the Train Operator to select the Restricted Manual Mode and try to move.(5)If the train still does not move, the Traffic Controller shall authorize the Train Operator to operate the "Cut Out switch" and to proceed in Cut Out mode of control to the next station exercising utmost vigilance so that he may stop short of any obstruction.(6)At the next station, passengers shall be detrained and the train worked to depot or a suitable siding.
