| Office Name | Korai B.O |
| Pincodes | 848204 |
| Area | Korai |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Begusarai |
| Postal Region | Muzaffarpur |
| District | Begusarai |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Korai S.O |
| Pincodes | 480880 |
| Area | Korai |
| Office Status | Sub Post Office |
| Postal Circle | Madhya Pradesh |
| Postal Division | Balaghat |
| Postal Region | Bhopal Hq |
| District | Seoni |
| State | Madhya Pradesh |
| Telephone No. | 07695-246421 |
| Office Name | Korai B.O |
| Pincodes | 283110 |
| Area | Korai |
| Office Status | Branch Post Office |
| Postal Circle | Uttar Pradesh |
| Postal Division | Agra |
| Postal Region | Agra |
| District | Agra |
| State | Uttar Pradesh |
| Telephone No. | Na |