IFSC is an acronym for Indian Financial System Code.
I -> Indian F -> Financial S -> System C -> Code
IFSC code is a unique 11-digit number which is an alphanumeric.
In an IFSC code, the first 4 characters are alphabets which denote the bank name.
Hence, the IFSC code of each branch of the same bank will begin with the same 4 letters. The 5th character is a zero.
The remaining 6 characters are digits or numbers which denote the branch code.
This is the part which makes an IFSC code unique