Indian Overseas Bank, SECRETARIAT-CHENNAI
| Branch | SECRETARIAT-CHENNAI |
| Branch Code | 001172 |
| Bank | Indian Overseas Bank |
| Address | SECRETARIAT COMPLEX, FORT ST GEORGE, CHENNAI |
| Zip Code | 600009 |
| City | Chennai |
| District | CHENNAI |
| State | TAMIL NADU |
| MICR Code | 600020061 |
| IFSC Code | IOBA0001172 (IFSC Code is used for payment applications such as NEFT, RTGS and IMPS) |
| Weekly Holiday | Second and Fourth Saturdays and all Sundays |