This time of year, air pollution in Delhi-NCR becomes a major worry. Burning of the twigs is one of the causes that have been suggested.
According to the Special Public Prosecutor for the state of Delhi, there is enough evidence against Narain based on the woman's confession, which is "corroborated by the statement of a protected witness," to prevent bail from being granted "looking at the nature of the act."
The paper suggests installing a real-time monitoring system to check the Najafgarh drain's pollution levels, fully treating sewage and industrial effluents, and routinely desilting the drain.