You can block your ATM or debit card instantly using your bank's online services.
- Log into your net banking portal or mobile banking app.
- Navigate to the 'Service Request' or 'Card Management' section.
- Select the option to 'Block Card' and choose the card you want to block.
- Submit the request after authenticating it, usually with an OTP.
This immediate action safeguards your account from unauthorized transactions if your card is lost or stolen.