E- banking (or Internet banking) allows customers to conduct financial transactions on a secure website operated by their retail or virtual bank, credit union or building society. In today's demanding world, everybody needs instant banking solutions for a better lifestyle. In the current scenario, almost every bank in India has the internet banking facility. E-banking or internet banking made things much easier for the people and saves lot of time. Researches show that impact of Internet banking on cost savings, revenue growth and increased customer satisfaction on Industry is tremendous and can be a potential tool for building a sound strategy. However, it has raised many public policy issues before the banking regulators and government agencies. Interestingly, reliable and systematic information on the scope of Internet banking in Indian context is still not sufficient, particularly what it means to the consumers and the bankers. This study aims at evaluating services quality of online banking in Delhi city, Capital of India. This paper mainly characterize, online banking services of SBI Bank one the leading public sector bank . A structured questionnaire is administered to various target groups. Researcher mainly wants to investigate the 3 important elements of online banking i.e. Efficiency ,Reliability, and Privacy of customer information.