|UPI or Unified Payments Interface is an Indian Government backed real-time payment system and has gained massive popularity. Developed by the National Payments Corporation of India it allows users to make digital transactions directly using their bank accounts. Mobile payment apps such as GPay, Paytm etc. use this payment interface for sending and receiving money. There are certain restrictions on the maximum/minimum deposit and withdrawal amount using UPI and you will need to keep that in mind when you are using this platform.