| Bank | Indian Overseas Bank |
| State | Bihar |
| District | Purnisa |
| Branch | Purnia |
| Branch CODE | 002192 (Last 6 Characters of the IFSC Code) |
| Phone | 242754 |
| ifsc | IOBA0002192 |
| Bank | Indian Overseas Bank |
| State | Bihar |
| District | Patna |
| Branch | Boring Road |
| Branch CODE | 002200 (Last 6 Characters of the IFSC Code) |
| Phone | 2278903 |
| ifsc | IOBA0002200 |
| Bank | Indian Overseas Bank |
| State | Bihar |
| District | Siwan |
| Branch | Siwan |
| Branch CODE | 002227 (Last 6 Characters of the IFSC Code) |
| Phone | 221238 |
| ifsc | IOBA0002227 |
| Bank | Indian Overseas Bank |
| State | Bihar |
| District | Gopalganj |
| Branch | Gopalganj |
| Branch CODE | 002229 (Last 6 Characters of the IFSC Code) |
| Phone | 254315 |
| ifsc | IOBA0002229 |
| Bank | Indian Overseas Bank |
| State | Bihar |
| District | Nalanda |
| Branch | Bihar Shariff |
| Branch CODE | 002376 (Last 6 Characters of the IFSC Code) |
| Phone | 28584896 |
| ifsc | IOBA0002376 |
| Bank | Indian Overseas Bank |
| State | Bihar |
| District | Madhubani |
| Branch | Madhubani |
| Branch CODE | 002377 (Last 6 Characters of the IFSC Code) |
| Phone | 221025 |
| ifsc | IOBA0002377 |