| Velachery (R) | ||
| Months | Day | Night |
| Standard Limit in Leq dB(A) | 55 | 45 |
| January | 62 | 53 |
| Febraury | 63 | 54 |
| March | 61 | 51 |
| April | 58 | 49 |
| May | 61 | 51 |
| June | 62 | 52 |
| July | 61 | 52 |
| August | 61 | 52 |
| September | 63 | 54 |
| October | 62 | 54 |
| November | 64 | 56 |
| December | 67 | 67 |
| All Values are measured in Leq dB(A) | ||
| I= Industrial, C= Commercial, R= Residential, S= Silence | ||