Periya Kallar B.O is the primary post office registered under PIN code 642106 in Coimbatore, Tamil Nadu. This code sits within the Southern Postal Region, with 4 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Periya Kallar B.O | BO | Branch Post Office |
| Chinnakallar B.O | BO | Branch Post Office |
| Cinchona East B.O | BO | Branch Post Office |
| Cinchona S.O | SO | Sub Post Office |
