At MG Road metro station I noticed two notices posted at the entrance. Each one features the picture of a Namma Metro security guard and tells how they acted with honesty and integrity when they returned valuables to their owners.
The Namma Metro security guards take their jobs seriously. Step too close to the yellow line and you’ll hear the shrill blast of a whistle. When a train arrives, the chorus of blowing whistles is almost deafening. One guard even blew his whistle at me because I took the stairs instead of the escalator! Namma Metro security guards are whistle happy. They also seem to be honest folk. Here are two examples: