Pincode 621705 is a 6-digit postal code serving 9 post offices in Ariyalur district, Tamil Nadu. Kallankurichi SO is the Post Office for this area, located at 11.1877°N, 79.2581°E. The first digit ‘6’ identifies the Tamil Nadu postal region; the full code pinpoints the Ariyalur delivery zone.
| Post Office | Type |
|---|---|
| Kallankurichi SO | Post Office |
| Ayanathur BO | Branch Post Office |
| Kadugur BO | Branch Post Office |
| Lingathadimedu BO | Branch Post Office |
| Manakudi BO | Branch Post Office |
| O Koothur BO | Branch Post Office |
| Ottakoil BO | Branch Post Office |
| Srinivasapuram BO | Branch Post Office |
| Tamaraikulam BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Ariyalur, Tamil Nadu. Map data: OpenStreetMap, CARTO.