| Velachery (R) | ||
| Months | Day | Night |
| Standard Limit in Leq dB(A) | 55 | 45 |
| January | 64 | 57 |
| Febraury | 65 | 58 |
| March | 66 | 57 |
| April | 67 | 58 |
| May | 65 | 61 |
| June | 65 | 59 |
| July | 65 | 58 |
| August | 65 | 58 |
| September | 64 | 57 |
| October | 67 | 57 |
| November | 74 | 80 |
| December | 72 | 84 |
| All Values are measured in Leq dB(A) | ||
| I= Industrial, C= Commercial, R= Residential, S= Silence | ||