I see where the confusion is. Sorry for the lack of info. I am in US, but my wife and children are back in Nepal. Both of my kids were born in Nepal. They went to New Delhi couple weeks ago by train. I am flying to New Delhi next month, and flying them to Kathmandu with me. My wife didn't have anything when she took kids to India in train. Now that I want them to fly to Kathmandu with me, I need to know what will they be asking for my kids to enter Nepal. Hope this clears the confusion.