Mumbai just celebrated its quietest Diwali in 15 years, perhaps indicating rising awareness against the use of noisy firecrackers. Sunday's Diwali celebrations in Mumbai generated a decibel level of 112.3, recorded just after the 10 pm deadline for bursting of firecrackers, down from 117.8 dB posted at the same time in 2017, an NGO fighting against noise pollution stated on Monday.

Sumaira Abdulali of the NGO Awaaz Foundation said the lower decibels may be a result of greater awareness among people about curbing noise pollution apart from a fall in use of firecrackers over a period of time.