In Ariyalur district, Tamil Nadu, PIN code 621704 is anchored by Kavanur BO, a Branch Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 14 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Kavanur BO | BO | Branch Post Office |
| Ariyalur Bazaar SO | SO | Sub Post Office |
| Periyavenmani BO | BO | Branch Post Office |
| Siruvalur BO | BO | Branch Post Office |
| Subbarayapuram BO | BO | Branch Post Office |
| Hasthinapuram BO | BO | Branch Post Office |
| Inamattur BO | BO | Branch Post Office |
| Valajanagaram BO | BO | Branch Post Office |
| Periyanagalur BO | BO | Branch Post Office |
| Vilangudi BO | BO | Branch Post Office |
| Ariyalur Ariyalur SO | SO | Sub Post Office |
| Telur BO | BO | Branch Post Office |
| Thavuthaikulam BO | BO | Branch Post Office |
| Varanavasi BO | BO | Branch Post Office |
