I personally have not come across that situation. I'm assuming that Nepal has fewer economic or job opportunities, and that more money is given in India. Hence, the trafficking happens in India rather than there.
There is one positive hope that has been happening. From the girls that the Rescue Foundation has been rescuing, we've been finding a massive decline in the number of girls from Nepal.
It's not easy to find girls from Nepal in Mumbai or Pune, or in any other place. Unlike five to 10 years back, there were a lot of girls, and especially minor girls who had been trafficked from Nepal and brought to India.
I also want to quickly point out that natural calamities or riots are the best places for traffickers, because they take advantage of kids who are vulnerable. They've lost their parents or misplaced them. If they're missing, then they will take them and bring them to India immediately.