Andarkuppam BO is the primary post office registered under PIN code 600103 in Thiruvallur, Tamil Nadu. This code sits within the Southern Postal Region, with 4 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Andarkuppam BO | BO | Branch Post Office |
| Vellivoyalchavadi BO | BO | Branch Post Office |
| Vichoor BO | BO | Branch Post Office |
| Manali New Town SO | SO | Sub Post Office |
