IFSC-IFSC or Indian Financial System Code, is an 11-digit alphanumeric code. It is unique to a specific bank branch within the National Electronic Funds Transfer (NEFT) provided by the Reserve Bank of India.
MICR—Magnetic ink character recognition code, known as MICR code. This is a character recognition technology to streamline the processing and clearance of cheques and other documents.
Bank Client Code—A bank code is a code assigned by the central bank, a bank supervisory body, or a bankers association in a country to all its licensed member banks or financial institutions.
You can find these details on the Cheque Leaf, Passbook, and on the Bank/RBI website.