This Indian Overseas Bank (IOB) branch is located in SECRETARIAT in the CHENNAI area in CHENNAI city. Indian Overseas Bank - SECRETARIAT is the Top bank in Tamil Nadu. If you have your account in this bank then you will probably need its IFSC Code to Transfer Money from other Bank. Its IFSC Code is IOBA0001172. For any help you can visit the branch at and can mention its Branch Code i.e. 001172 or you can contact on .