For anyone interested to learn about the nighly cleaning routine for the Delhi metro, I strongly recommend to Google something like this: Why is the Delhi Metro

For anyone interested to learn about the nighly cleaning routine for the Delhi metro, I strongly recommend to Google something like this: Why is the Delhi Metro clean? Most Indians gush at the cleanliness of the Delhi metro. It is a world ahead of most average India Rail cars and stations. (I'm not speaking of long distance, upper class cars. Those are amazing, but ridiculously expensive.)