Delhi’s Air Quality Index (AQI) hit 171 on Wednesday, October 16th. And we are yet to hit the peak winter season. Generally, an AQI level beyond 50 or above falls in the unsafe zone. In anticipation, the Delhi government has already kick started its 21-point pollution control Winter Action Plan. This Plan includes real-time monitoring of pollution levels across 13 hotspots in the Capital, - this time using drones, a first-time event.