If there’s one thing that unites India across states, languages, and even cricket loyalties – it is the stubborn national habit of spitting in public. In fact, India could stake claim to being the expectorative capital of the world.From paan-stained staircases at railway stations to the crimson arcs decorating government office walls, the evidence is everywhere. Indian Railways and various local civic bodies spend billions of rupees scrubbing away the aftermath.