PIN code 631551 belongs to Krishnapuram B.O (Branch Post Office), located in Kanchipuram district, Tamil Nadu. It falls under the Southern Postal Region and is served by 5 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Krishnapuram B.O | BO | Branch Post Office |
| Balchettychatram S.O | SO | Sub Post Office |
| Damal B.O | BO | Branch Post Office |
| Muthavedu B.O | BO | Branch Post Office |
| Musaravakkam B.O | BO | Branch Post Office |
