"""He gives us tea in a plastic cup, never in a glass cup. he doesn't want to be polluted by us and says he won't serve in a glass cup because we are from the dome caste... when we ask for water, they give it in our hands."" The tea vendor doesn't let them stand close to the stall or give them tea in a glass cup, like everyone else. Article 17 of the Indian Constitution, make the practice of untouchability a punishable offence."