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