Kallukatti S.O is the primary post office registered under PIN code 630001 in Sivaganga, Tamil Nadu. This code sits within the Southern Postal Region, with 5 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Kallukatti S.O | SO | Sub Post Office |
| Muthupatnam S.O | SO | Sub Post Office |
| Karaikudi Angadi B.O | BO | Branch Post Office |
| Karaikudi H.O | HO | Head Post Office |
| Senjai S.O | SO | Sub Post Office |
