PIN code 600090 belongs to Rajaji Bhavan S.O (Sub Post Office), located in Chennai district, Tamil Nadu. It falls under the Southern Postal Region and is served by 2 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Rajaji Bhavan S.O | SO | Sub Post Office |
| Besantnagar S.O | SO | Sub Post Office |
