| Office Name | Baikunthpur B.O |
| Pincodes | 841409 |
| Area | Baikunthpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Siwan |
| Postal Region | Muzaffarpur |
| District | Gopalganj |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Baikunthpur B.O |
| Pincodes | 802123 |
| Area | Baikunthpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Bhojpur |
| Postal Region | Patna Hq |
| District | Buxar |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Baikunthpur B.O |
| Pincodes | 844124 |
| Area | Baikunthpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Vaishali |
| Postal Region | Patna Hq |
| District | Vaishali |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Baikunthpur S.O |
| Pincodes | 486441 |
| Area | Baikunthpur |
| Office Status | Sub Post Office |
| Postal Circle | Madhya Pradesh |
| Postal Division | Rewa |
| Postal Region | Bhopal Hq |
| District | Rewa |
| State | Madhya Pradesh |
| Telephone No. | 07660-295863 |