| Office Name | Jonki B.O |
| Pincodes | 847225 |
| Area | Jonki |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kachhua B.O |
| Pincodes | 847410 |
| Area | Kachhua |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kachhubi B.O |
| Pincodes | 847410 |
| Area | Kachhubi |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kaithai B.O |
| Pincodes | 847236 |
| Area | Kaithai |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kaithinia B.O |
| Pincodes | 847403 |
| Area | Kaithinia |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kakardobh B.O |
| Pincodes | 847108 |
| Area | Kakardobh |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kakna B.O |
| Pincodes | 847212 |
| Area | Kakna |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kako B.O |
| Pincodes | 847404 |
| Area | Kako |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kakraul B.O |
| Pincodes | 847238 |
| Area | Kakraul |
| 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 | 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 | Kalikapur B.O |
| Pincodes | 847402 |
| Area | Kalikapur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kalikapur B.O |
| Pincodes | 847228 |
| Area | Kalikapur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kaluahi S.O |
| Pincodes | 847229 |
| Area | Kaluahi |
| Office Status | Sub Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | 06276-257878 |
| Office Name | Kamalabari B.O |
| Pincodes | 847226 |
| Area | Kamalabari |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kamalpur B.O |
| Pincodes | 847225 |
| Area | Kamalpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kamalpur B.O |
| Pincodes | 847451 |
| Area | Kamalpur |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Supaul |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kamrail B.O |
| Pincodes | 847408 |
| Area | Kamrail |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Supaul |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kanhauli B.O |
| Pincodes | 847228 |
| Area | Kanhauli |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kanhouli B.O |
| Pincodes | 847239 |
| Area | Kanhouli |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Darbhanga |
| State | Bihar |
| Telephone No. | Na |
| Office Name | Kapileshwar Asthan B.O |
| Pincodes | 847238 |
| Area | Kapileshwar Asthan |
| Office Status | Branch Post Office |
| Postal Circle | Bihar |
| Postal Division | Madhubani |
| Postal Region | Muzaffarpur |
| District | Madhubani |
| State | Bihar |
| Telephone No. | Na |