As per Central Pollution Control Board (CPCB) India, the permitted values of noise level in a silence zone during the day time and night time are respectively:
1
50 dB(A) and 40 dB(A)
2
70 dB(A) and 60 dB(A)
3
65 dB(A) and 55 dB(A)
4
55 dB(A) and 50 dB(A)
5
Not Attempted