Turns out, wrong train, going slightly the wrong way. But a guy walks up to me in the train, asks me where I'm going, and starts to help me get to where I need to go. He arranged a bunk for me, talked to the conductor for me, bought(!) another train to Agra for me, called hostels in Agra, etc etc. I've had multiple such encounters here in India, of people going so far out of their way to help me here, something you would honestly never see in my country Germany. It's like a strange incongruence, with one fraction of the population hell-bent on fleecing you for all you've got, and another that will go way further out of their way for you than you could ever imagine.