A. Unified Payment Interface
B. Intermediate Payment Interface
C. Unified Pay Interface
D. Unified Peoples Interface

Solution

A. Unified Payment Interface

Explanation

Unified Payment Interface (UPI) was developed by the National Payments Corporation of India (NPCI) which was established by the Reserve Bank of India (RBI) and Indian Banks Association (IBA). It enables real time, person to merchant transactions, inter-bank peer to peer transactions.