Most countries are promoting cashless transactions and digital payments. This helps people not carry much cash. People can pay their bills through debit or credit cards using POS devices. These devices are connected to the payment gateway on the Internet. Besides, People can also use their smartphone and the Internet for processing transactions on UPI (Unified Payment Interface). It does not even require them to carry their cards. The UPI payment method is continuously evolving and is expected to cover most transactions in the near future.