Well, before the demonetization cash used to be in play, but now people are accepting anything. You can use Paytm and other 3rd party online apps to pay for the services. But if you prefer to pay cash, then don’t just hand it over to the escort, because it looks disrespectful. Instead you can choose to put the money in an envelope and leave at the rest room where the escort girl can count it and keep it with herself. Don’t play games with them like paying 50% in advance and 50% after the services are over. Just pay them the whole amount before starting anything. This relaxes the escort girl and she can continue without worrying about anything else.