First minutes in Delhi was like, here is so hard to breath. Nice thing about Delhi here is alot of "good" people who knows where is "one and only government approved" tourist center. And they all knows that all other centres is fake, but they are "not fake one". Everyone one street who comes to you tries to show "real one". ... after 5-6 such centers we returned to one where we where reserved tickets (fake one oficial center). But they was ok, gived us tickets on x2.5 of Delhi-Goa ticket price. Without indian phone number and credit card you cannot buy tickets.