PinCode: 636602, Ondikadai Post Office, Yercaud, Salem, Tamil Nadu
| Post Office | Ondikadai |
| Post Office Status | Sub Post Office (Delivery) |
| PinCode | 636602
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| Telephone | 04281-222641 |
| Town/Taluk | Yercaud |
| District | Salem |
| State | Tamil Nadu |
| Postal Division | Salem East |
| Postal Region | Coimbatore |
| Postal Circle | Tamilnadu |
List of Other Post Offices in Yercaud, Salem, Tamil Nadu