If you have ever transferred the money on the internet you must have come across IFSC Code it is a unique code assigned by RBI to the branches of all the bank in India. every branch possesses a unique code. this code is used to transfer of money through NEFT, RTGS, IMPS etc. this link will take you to the portal that can provide all the details of a bank as well as their branches all over India-https://www.askbankifsccode.com/CANARA-BANK/TAMIL-NADU/CHENNAI