Razorpay Integration & Text Chat

I already have the PickCab Partner Android app live on Google Play (https://play.google.com/store/apps/details?id=com.pickcab.partner&hl=en_IN). I now need two additions: 1. Integrate the Razorpay payment... (Budget: ₹1500 - ₹12500 INR, Jobs: Android, API Integration, Java, Mobile App Development, Mobile App Testing, Payment Gateway Integration, Software Architecture, Software Development)