| Office Name | Barkagaon B.O |
| Pincodes | 845428 |
| Area | Barkagaon |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | East Champaran |
| Postal Region | Muzaffarpur |
| District | East Champaran |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Barkagaon B.O |
| Pincodes | 841226 |
| Area | Barkagaon |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Siwan |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Barkagaon B.O |
| Pincodes | 841436 |
| Area | Barkagaon |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Gopalganj |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Barkagaon B.O |
| Pincodes | 802201 |
| Area | Barkagaon |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Bhojpur |
| Postal Region | Patna Hq |
| District | Bhojpur |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Barkagaon S.O |
| Pincodes | 825311 |
| Area | Barkagaon |
| Office Status | Sub Post Office |
| Postal Circle | Jharkhand |
| Postal Division | Hazaribagh |
| Postal Region | Ranchi |
| District | Hazaribag |
| State | Jharkhand |
| Telephone No. | 0651-283625 |