SBI offers several ways to find your CIF number if you've misplaced your passbook. For online users, simply login to SBI Net Banking and look for the "Account Information" section (which might be called "My Account" or something similar). Your CIF number will be there. If you avoid going online, you can call SBI customer service on their toll-free numbers (1800 112 211 or 1800 425 3800). Answer their verification questions, and they'll provide your CIF number. Lastly, check your electronic SBI account statements (email or online portal) - your CIF number might be printed there too.
