Kalvehalli B.O is the primary post office registered under PIN code 635101 in Krishnagiri, Tamil Nadu. This code sits within the Southern Postal Region, with 5 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Kalvehalli B.O | BO | Branch Post Office |
| Sundekuppam B.O | BO | Branch Post Office |
| Krishnagiri Project S.O | SO | Sub Post Office |
| Gundalapatti B.O | BO | Branch Post Office |
| Kurumpatti B.O | BO | Branch Post Office |
