IDBI Bank SION (WEST) Branch MUMBAI MICR code indicate many things about a particular banking operation. IDBI Bank SION (WEST) Branch has many branches in MUMBAI. MICR Code for IDBI Bank SION (WEST) Branch MUMBAI clearly shows its MICR Code allocated by RBI. All third party transactions and processing of any such kind can't be possible without MICR code. That is why MICR Code is considered so important in the banking transactions. Getting access to IDBI Bank SION (WEST) Branch MICR codes MUMBAI is not a big deal. It can be found out easily. The MICR Code of a particular bank indicates lots of things that it offers to account holders.