Tamilnadu-Chennai
| Designation (Connected State/UT) | Name | MTNL/BSNL Office | Residence | Mobile | Fax |
| Chief Secretary | Debendranath Sarangi | 044-25671555 | 044-22351104 | - | 044-25672304 |
| Home Secretary | R.Rajagopal | 044-25671113 | 044-25322425 | 9444959425 | 044-25670596 |
| DGP | K.Ramanujam | 044-28447701 | 044-28594444 | 9444457711 | 044-28447703 |
| Revenue Secretary | R.Rameshram Mishra | 044-25671556 | 044-24917454 | 9841590914 | 044-25672603 |
| Relief Commissioner | K.Gnanadesikan | 044-25671556 | 044-26258039 | - | 044-25672603 |
| Disaster Management cell of State Govt. | - | 044-1070 28593990 | - | - | 044-28410577 |
