Need to integrate phone UPI merchant in Android App with PHP backend

We need to integrate Phonepe UPI payment in android app, its not just UPI intent forward, we need to integrate phonepe API to make order and get status order everything, so both android and PHP work needed, after awarded to you, we will share the API key details

PhonePe API doc link : https://developer.phonepe.com/reference#accept-payment-android

If you have experience on phonepe API then bid