Despite a campaign by Karnataka State Pollution Control Board (KSPCB) for a safe and soundless Deepavali, the noise and air pollution levels shot up during the three-day festival in most areas of the City, including silent zones.

The highest noise level was recorded in Yelahanka New Town, categorised as an industrial zone. On November 13, it recorded 84 dB (decibel), an increase of 14 per cent compared to the recording on a normal day. City Railway Station recorded the highest air pollution with an increase in Sulphur dioxide, Nitrogen dioxide and Carbon monoxide levels, registering an average of 72 per cent increase in air pollutants on all the three days.