Difference between cutomer Id and TIN

The Customer ID Number and the Telephone Identification Number (TIN), are two separate unique numbers. The Customer ID is a unique number given while Account opening. This is communicated to you in the Welcome Letter.

The Telephone Identification Number (TIN), is a four-digit number also called as a Phone banking password. You need to use the TIN along with the Customer ID Number in order to access A/c information through Phone Banking.