PIN code 621803 – Ariyalur, Tamil Nadu
621803 is the PIN code of 12 post offices in Ariyalur district, Tamil Nadu, served by the Kallathur Thandalai SO sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Kallathur Thandalai SOMap | Post office | Yes | Tiruchirapalli Division |
| Anikduichan BOMap | Branch office | Yes | Tiruchirapalli Division |
| Eravangudi BOMap | Branch office | Yes | Tiruchirapalli Division |
| Kalleri BOMap | Branch office | Yes | Tiruchirapalli Division |
| Kattathur BOMap | Branch office | Yes | Tiruchirapalli Division |
| Koovathur BOMap | Branch office | Yes | Tiruchirapalli Division |
| Kulathur BOMap | Branch office | Yes | Tiruchirapalli Division |
| Kumiliankuli BOMap | Branch office | Yes | Tiruchirapalli Division |
| Vadugarpalayam BOMap | Branch office | Yes | Tiruchirapalli Division |
| Vettiarvettu BOMap | Branch office | Yes | Tiruchirapalli Division |
| Vizhapallam BOMap | Branch office | Yes | Tiruchirapalli Division |
| ZMelur BOMap | Branch office | Yes | Tiruchirapalli Division |
Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.