what is green pin in atm card

A Green PIN is an eco-friendly and digital alternative to the traditional physical paper PIN mailer for ATM and debit cards. It allows a cardholder to generate or reset their Personal Identification Number (PIN) instantly and securely through channels like an ATM, mobile banking, or internet banking. The process typically involves receiving a One-Time Password (OTP) on the registered mobile number, eliminating the need to wait for a physical mailer, which saves paper and enhances security.