If you've forgotten your Citi card PIN, you can easily recover it online. To begin, log in to your Citibank online banking account or open the Citibank mobile app. Go to the "Services" or "Card Management" section and choose the option to retrieve your PIN. You'll be asked to verify your identity by entering an OTP sent to your registered mobile number or email. Once you've verified your identity, you'll be able to view or reset your PIN. For additional help, you can call the Citibank PIN recovery helpline at 1-888-388-4751.