In Ariyalur district, Tamil Nadu, PIN code 621701 is anchored by Kasankottai 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 |
|---|---|---|
| Kasankottai BO | BO | Branch Post Office |
| Sathambadi BO | BO | Branch Post Office |
| Sundakudi BO | BO | Branch Post Office |
| Thuthur BO | BO | Branch Post Office |
| Ambapur SO | SO | Sub Post Office |
| Govindaputhur BO | BO | Branch Post Office |
| Ulliakudi BO | BO | Branch Post Office |
| Kadambur BO | BO | Branch Post Office |
| Kunamangalam BO | BO | Branch Post Office |
| Sripurandan BO | BO | Branch Post Office |
| Muthuvancheri BO | BO | Branch Post Office |
| Periyattirukonam BO | BO | Branch Post Office |
| Pungangudi BO | BO | Branch Post Office |
| Nagamangalam BO | BO | Branch Post Office |
