| Office Name | Basar S.O West Siang |
| Pincodes | 791101 |
| Area | Basar West Siang |
| Office Status | Sub Post Office |
| Postal Circle | North Eastern |
| Postal Division | Arunachal Pradesh |
| Postal Region | Shillong Hq |
| District | West Siang |
| State | Arunachal Pradesh |
| Telephone No. | 03795-222230 |