➢ You should deactivate various features of credit / debit card, viz., online transactions both for domestic and international transactions, in case you are not going to use the card for a while and activate the same only when the card usage is required.
➢ Similarly, Near Field Communication (NFC) feature should be deactivated, if the card is not to be used.
➢ Before entering PIN at any Point of Sale (POS) site or while using the card at an NFC reader, you must carefully check the amount displayed on the POS machine screen and NFC reader.
➢ Never let the merchant take the card away from your sight for swiping while making a transaction.
➢ Cover the keypad with your other hand while entering the PIN at a POS site / ATM.
Source: Reserve Bank of India