Unified Payments Interface is a digital payment system that allows people to instantly transfer money from one bank account to another in India. UPI has become more and more popular due to its many benefits, including its free, fast, secure, and easy. The Reserve Bank of India (RBI) has introduced new rules regarding fees applicable to transactions made through the Unified Payments Interface (UPI) system. As per the new rules, UPI transactions above Rs. 2,000 made through a Prepaid Payment Instrument (PPI) will incur a PPI merchant fee. NPCI said the interchange fee will not be applicable on P2P or peer-to-peer transactions and P2PM or peer-to-peer-merchant transactions between a bank account and a PPI wallet. Essentially, this charge will only apply to digital wallet transactions made via merchant QR codes. This means that all payments made using UPI such as Paytm, Phonepe, Google Pay to friends, family or to a merchants bank account will not be affected by this interchange fee. This study reveals the customer insight towards UPI payment with the help of using the chi square test among Thoothukudi city