| Velachery (R) | ||
| Months | Day | Night |
| Standard Limit in Leq dB(A) | 55 | 45 |
| January | 62 | 60 |
| Febraury | 64 | 61 |
| March | 65 | 62 |
| April | 64 | 62 |
| May | 63 | 59 |
| June | 63 | 61 |
| July | 63 | 61 |
| August | 63 | 59 |
| September | 73 | 73 |
| October | 75 | 74 |
| November | 57 | 56 |
| December | 57 | 56 |
| All Values are measured in Leq dB(A) | ||
| I= Industrial, C= Commercial, R= Residential, S= Silence | ||