Merku Alwarkurichi BO is the primary post office registered under PIN code 627412 in Tenkasi, Tamil Nadu. This code sits within the Southern Postal Region, with 5 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Merku Alwarkurichi BO | BO | Branch Post Office |
| Sivasailam BO | BO | Branch Post Office |
| Alwarkurichi SO | SO | Sub Post Office |
| Katana Anaithittam BO | BO | Branch Post Office |
| Sambankulam BO | BO | Branch Post Office |