There are varieties of services offered by the banks through e-banking. The research study has identified with twenty six e-banking services, and classified into three different levels such as Basic, Premium and Super premium levels. The study also has identified six parameters designed to know the Customers Perception towards adoption of e-banking services and labelled as Perceived Ease of Use, Perceived Usefulness, Availability, Privacy and Security, Reliability and Accessibility. Whereas four parameters are designed to know the impact of e-banking on Operational Performance bank branches such as Workload of Employees, Core Banking Solutions, Personal Development & Relations, and Real Time Gross Settlement Systems. For DEA analysis Inputs as ATMs, Employees of the DMUs and outputs as Workload of Employees, Core Banking Solutions, Personal Development & Relations and Real time gross settlements.The present study used operational performance to indicate the efficiency of bank branches by using inputs and outputs.