In this Article we will discuss about the UPI Deep linking. By this Deep linking we can perform UPI Payments through intent .Basically it open the All UPI supported Application in our mobile then user choose their preference and initiate the Payment and through this we get the payment credentials like payment id ,transaction id ,etc. without any payment gateway. So lets start with what is UPI? Unified Payments Interface(UPI) is an instant real-time payment system developed by National Payments Corporation of India facilitating inter-bank transactions. The interface is regulated by the Reserve Bank of India and works by instantly transferring funds between two bank accounts on a mobile platform. (from Wikipedia) Coding part: package com.example.droidmedium; import android.content.Intent; import android.net.Uri; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Butt