PIN code 521004 belongs to Krishna University S.O (Sub Post Office), located in Krishna district, Andhra Pradesh. It falls under the Southern Postal Region and is served by 4 post offices in total.
| Post office | Type | Full name |
|---|---|---|
| Krishna University S.O | SO | Sub Post Office |
| Polatitippa B.O | BO | Branch Post Office |
| Rudravaram B.O | BO | Branch Post Office |
| Saradanagar B.O | BO | Branch Post Office |
