| Post office | Chalkusa B.O |
| Pin code | 825109 |
| Office type | B.O |
| Taluk / city | Jainagar |
| District name | Koderma |
| State name | Jharkhand |
| Delivery status | Delivery |
| Division name | Hazaribagh |
| Region name | Ranchi |
| Circle name | Jharkhand |
| Related sub office | Jainagar S.O (Koderma) |
| Related head office | Hazaribagh H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 825109 | Chalkusa B.O | Jainagar | Koderma | Jharkhand |
| 825109 | Chaubey B.O | Jainagar | Koderma | Jharkhand |
| 825109 | Dandadih B.O | Jainagar | Koderma | Jharkhand |
| 825109 | Jainagar S.O (Koderma) | Jainagar | Koderma | Jharkhand |
| 825109 | Maskedih B.O | Jainagar | Koderma | Jharkhand |
| 825109 | Naitand B.O | Jainagar | Koderma | Jharkhand |
| 825109 | Sharmatand B.O | Jainagar | Koderma | Jharkhand |
| 825109 | Sudan B.O | Jainagar | Koderma | Jharkhand |