The problem if you go to the police he will deny and even by force from the police he will not say the truth.
I know a Nepali who ask to have money for his mother operation, and fortunately I spoke with my friend and told me do not give him, I said why?
He said I lent him 4000 QR and he did not return it back with three days, he returned it after one month.
This is what I remember.
Again never trust these Nepali or Bangali people.