PIN code 602025 belongs to Kalambakkam B.O (Branch Post Office), located in Thiruvallur district, Tamil Nadu. It falls under the Southern Postal Region and is served by 7 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Kalambakkam B.O | BO | Branch Post Office |
| Koppur B.O | BO | Branch Post Office |
| Tirur Cpt S.O | SO | Sub Post Office |
| Papparambakkam B.O | BO | Branch Post Office |
| Thozhur B.O | BO | Branch Post Office |
| Putlur B.O | BO | Branch Post Office |
| Aranvoyal B.O | BO | Branch Post Office |
