In Nagapattinam district, Tamil Nadu, PIN code 611003 is anchored by Nagapattinam Collectorate S.O, a Sub Post Office. Mail addressed to this code is sorted through the Southern Postal Region, across 2 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Nagapattinam Collectorate S.O | SO | Sub Post Office |
| Palpannaichery B.O | BO | Branch Post Office |
