Gudur H.O is the primary post office registered under PIN code 524101 in Tirupati, Andhra Pradesh. This code sits within the Southern Postal Region, with 3 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Gudur H.O | HO | Head Post Office |
| Gudur East S.O | SO | Sub Post Office |
| Malavyanagar S.O | SO | Sub Post Office |
