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