Indian Overseas Bank branches in Patiala: Get the list of Indian Overseas Bank MICR codes in Patiala which are made available by Branch. Patiala MICR code is a character-recognition technology used mainly by the banking industry to ease the processing and clearance of cheques and other documents. Patiala MICR code has 9 digits first three digits are Patiala City Code, second three digits are Patiala bank code and last three are Patiala branch code.