| Office Name | Kalapatti B.O |
| Pincodes | 847409 |
| Area | Kalapatti |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kalapatti B.O |
| Pincodes | 678702 |
| Area | Kalapatti |
| Office Status | Branch Post Office |
| Postal Circle | Kerala |
| Postal Division | Palghat |
| Postal Region | Calicut |
| District | Palakkad |
| State | Kerala |
| Telephone No. | Na |
| Office Name | Kalapatti S.O |
| Pincodes | 641048 |
| Area | Kalapatti |
| Office Status | Sub Post Office |
| Postal Circle | Tamilnadu |
| Postal Division | Coimbatore |
| Postal Region | Coimbatore |
| District | Coimbatore |
| State | Tamil Nadu |
| Telephone No. | 0422-2666430 |