PSP is the banking company authorized to act as a Payment Service Provider (PSP) under the UPI framework. PSP engages the TPAP to provide UPI services to the end-user customers.</p> <p> <strong>What is TPAPs?</strong> </p> <p>Third Party Application Provider (TPAP) is an entity that provides the UPI compliant app(s) to the end-user customers to facilitate UPI based payment transactions.</p> <p> <strong>What is Customer’s Bank?</strong> </p> <p>