Earlier ICICI bank had only online transaction password for making any online payment. Now ICICI has added another layer of security by introducing debit or ATM card verification method. In which you need to enter the grid number which is basically unique and is behind your ATM or debit card. This is a nice initiative to add online bank security, but must be annoying for users who don’t have a debit card yet. Also read : How to register for ICICI credit card PIN
