The customer is the king of the market. The banking sector benefits greatly from online banking systems. Nowadays, banks offer a variety of products and services to their customers, including online banking services, for their convenience and safety, at a cheap cost. This study revealed that in today's digital environment, mobile banking plays an important role for every individual in the economy. This study focusses on client perceptions of SBI Mobile Banking service. The study includes both primary and secondary data. The study's sample size consists of 150 SBI customers.The study's findings suggest that the majority of clients choose to use mobile banking services rather than cashless transactions. There are both advantages and disadvantages to the service. Banks take the necessary safeguards to keep their customers.