The purpose of the study is to examine the awareness, perception and satisfaction level of clients of popular UPI platforms. Satisfied clients are the biggest promoters in today’s fast-changing competitive market. Their favourable word-of-mouth provides legitimacy, appeal, and aids in the acquisition of new clients to the business. The Unified Payment System (UPI) is designed to build a platform for cashless and transparent financial transactions by using the advantages of mobile technology. So, this study is based mostly on primary data collected from 100 samples from UPI clients in Kerala through structured questionnaire and the secondary data used only for theocratical frame. The key tools for data analysis is statistical tool like One-way ANOVA and weighted averages. Study result reveals the significant influence of educational status of the clients in their awareness of UPI platforms and its services. The study also observes the age and gender effect on the satisfaction and perception of clients.