What is the limit of Noise (in db) prescribed by Central Pollution Control Board (India) for the 'Residential Areas'?

The Central Pollution Control Board sets the night-time noise limit for residential areas at 45 decibels.

The 80 decibel figure is far higher than any residential standard and applies to no such zone.

The 75 decibel level corresponds to industrial areas during the daytime, not residential nights.

The 60 decibel level is closer to commercial-area limits rather than residential ones.

For residential areas the daytime limit is 55 decibels and the night-time limit is 45 decibels.

Night hours are taken as ten in the evening to six in the morning under these norms.