| Velachery (R) | ||
| Months | Day | Night |
| Standard Limit in Leq dB(A) | 55 | 45 |
| January | 66 | 62 |
| Febraury | 66 | 57 |
| March | 70 | 58 |
| April | 70 | 61 |
| May | 69 | 60 |
| June | 69 | 62 |
| July | 71 | 67 |
| August | 67 | 68 |
| September | 68 | 66 |
| October | 71 | 71 |
| November | 87 | 82 |
| December | 78 | 77 |
| All Values are measured in Leq dB(A) | ||
| I= Industrial, C= Commercial, R= Residential, S= Silence | ||