Than Singh from Rajasthan is one head police constable currently posted at the Red Fort. Apart from his job he teaches slum children. His school is well known. Ask anyone for the ‘Than Singh Ki Pathshala’. The notion of educating the downtrodden youth came into the mind of Than Singh when he saw poor children from nearby places working as rag pickers. He once lived in a slum at J.J. Colony, Meera Bagh. The pathos of the slum dwellers is known to him.