PIN code 521004 – Krishna, Andhra Pradesh
521004 is the PIN code of 4 post offices in Krishna district, Andhra Pradesh, served by the Krishna University S.O sub office.
| Post office | Type | Delivery | Division |
|---|---|---|---|
| Krishna University S.OMap | Post office | Yes | Machilipatnam Division |
| Polatitippa B.O | Branch office | Yes | Machilipatnam Division |
| Rudravaram B.O | Branch office | Yes | Machilipatnam Division |
| Saradanagar B.O | Branch office | Yes | Machilipatnam Division |
Source: India Post PIN code directory (Open Government Data). Branch offices usually get mail through their sub or head office.