Section 30(5) in The Bangalore Metro Railway (General) Rules, 2011
(5)(i)If doors on a train are not indicated as closed, the train shall not start from a station;(ii)if doors cannot be closed by hand or there is no obviously open door and the "doors closed" indication is still not received, passengers shall be detrained and the train shall be worked empty until it can receive attention from the Rolling Stock maintenance department;(iii)if some doors of train do not open at stations but after closing the doors all doors are indicated as closed, the train may remain in passenger service;(iv)in peak period, the extended dwell times at stations that could result from some doors not opening may make it desirable for the train to be withdrawn from service to avoid delaying the following trains.
