Shivansh Chandak spends his weekend mornings removing trash from the neighbourhood greens. He is not a ragpicker but a five-year-old student of La Martiniere for Boys. For company he has his 10-year-old brother Devansh. Both are part of a group of children in south Kolkata who have taken up a task which ideally should have been tackled by the Kolkata Municipal Corporation (KMC).