A seven-year-old girl was killed in west Delhi's Paschim Vihar last week after her throat was slit by banned Chinese kite strings. In another incident, a man was injured after the string slashed his throat while he was on his scooter with his son. Even though the Chinese 'manjha' was banned by the National Green Tribunal in 2017, it is still widely sold. How is the killer 'manjha' freely available?