After the recent demonetization, India is moving towards cashless economy. In order to be digital, online banking is the prerequisite, the scope of which has been explored in this study. Opportunities are immense but the challenges must be encountered legally and socially for developing its acceptability. In this regard an attempt has been made to analyze the development of online banking in India considering its acceptance to potential customers as well as to explore the major challenges associated with the development of online banking in India. Acceptability, opportunities and challenges of online banking has been studied with the help of sample survey through selected questionnaire. The study has given a clear picture on the level of acceptability of online banking and has identified different concern areas which must be taken into consideration to move India towards cashless economy.