Home » Services » Banking Services »  Banking Services The stringent training processes at the IISM ensure vigilant and disciplined security at banks Cash Van services Among others, BIS personnel ensure security for Cash Van Services of banks like ICICI.   ATM Maintenance BIS security personnel have left their indelible print in their handling of ATM maintenance of banks like IDBI, HDFC, Saraswat Bank and ICICI.   Mortgaged Vehicle Seizure One of the more recent areas of operations for BIS, this shall see BIS coordinating with various banks on vehicle recovery procedures.