Pincode 630551 is a 6-digit postal code serving 10 post offices in Sivaganga district, Tamil Nadu. Kalayarkoil SO is the Post Office for this area, located at 9.8470°N, 78.6422°E. The first digit ‘6’ identifies the Tamil Nadu postal region; the full code pinpoints the Sivaganga delivery zone.
| Post Office | Type |
|---|---|
| Kalayarkoil SO | Post Office |
| Andichoorani BO | Branch Post Office |
| KSukkanurani BO | Branch Post Office |
| Marakathur BO | Branch Post Office |
| Marathur BO | Branch Post Office |
| Mudikarai BO | Branch Post Office |
| Pallithammam BO | Branch Post Office |
| Paruthikanmoi BO | Branch Post Office |
| Pulikanmoi BO | Branch Post Office |
| Thuvaralankanmoi BO | Branch Post Office |
Data sourced from India Post, Department of Posts, Government of India. Data last verified: May 2026.
Sivaganga, Tamil Nadu. Map data: OpenStreetMap, CARTO.