| Office Name | Kalsi S.O |
| Pincodes | 248158 |
| Area | Kalsi |
| Office Status | Sub Post Office |
| Postal Circle | Uttarakhand |
| Postal Division | Dehradun |
| Postal Region | Dehradun |
| District | Dehradun |
| State | Uttarakhand |
| Telephone No. | 01360-276025 |
| Office Name | Kalsi B.O |
| Pincodes | 721456 |
| Area | Kalsi |
| Office Status | Branch Post Office |
| Postal Circle | West Bengal |
| Postal Division | Contai |
| Postal Region | South Bengal |
| District | East Midnapore |
| State | West Bengal |
| Telephone No. | Na |