Nalumukku SO is the primary post office registered under PIN code 627427 in Tirunelveli, Tamil Nadu. This code sits within the Southern Postal Region, with 3 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Nalumukku SO | SO | Sub Post Office |
| Oothu BO | BO | Branch Post Office |
| Kodayar Melthangal BO | BO | Branch Post Office |
