The data from these cities indicate that average noise pollution levels generally exceed the permissible limits. The data includes noise due to horns of vehicles

The average level of noise pollution generally exceeds the permissible limits in seven cities of the country, including Mumbai, Delhi, Kolkata, Chennai.

The information was made available by Environment Minister Anil Madhav Dave today in a written reply in Rajya Sabha.

He said the Central Pollution Control Board (CPCB) in association with its counterparts in every state carries out monitoring of noise pollution in seven metropolitan cities -- Mumbai, Delhi, Kolkata, Chennai, Bangalore, Lucknow and Hyderabad through a network of 70 noise-monitoring stations under National Ambient Noise Monitoring Programme (NANMP).