The banking sector has seen a variety of changes after the introduction of the CBS {CORE (Centralized Online Real-time Exchange) Banking Solution} based banking system. It is the management of public accounts in a single database. That is recording transactions, personal information of the customers, banking calculations, etc. It is because of CBS and the interconnectivity of bank servers and RBI that made banking services seamless and brought variety to it. Transacting through the different accounts of the different banks was a lengthy process before but now the process has been very simple because of digitization. The CBS allows the bankers to easily maintain records and share them with other banks. The banks now allow us to perform banking transactions and several other banking services online through internet banking. The digitization of banks can also be known as digital banking as the flow of cash in our day-to-day use has reduced tremendously and is a good sign both for the banks and for the government. The cash needs handling of it and being the process reduced gives much time for other areas to work on. The person now in order to refill petrol at a petrol pump will use his UPI(Unified Payments Interface) id to pay as it is quick, safe, and easy to use. He just needs to scan for the QR code and enter the pin. Many banks and applications are giving the UPI service and various promotional offers in collaboration with different franchisees. People use it on several outlets to get rewarded.