CIF Number - Online and Offline methods to find CIF Number SBI Bank account. Steps to find CIF Number of SBI Bank Account. CIF number refers to a file on a banks computer system that includes different personal and account-related details for all of the banks customers. How to know the CIF number of SBI : Find your SBI CIF number through passbook, internet banking, or YONO app with this simple guide. The simplest way to find your SBI CIF number is to look at the first page of your savings account passbook or chequebook. The bank prints the CIF number along with account details. Check in your passbook or chequebook