PIN code 691001 – Kollam, Kerala
691001 is the PIN code of 4 post offices in Kollam district, Kerala, served by the Kollam Bazar SO sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Kollam Bazar SOMap | Post office | No | Quilon Division |
| Kollam Cantonment SOMap | Post office | No | Quilon Division |
| Kollam Taluk Cutchery SOMap | Post office | No | Quilon Division |
| Kollam HOMap | Head office | Yes | Quilon Division |
Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.