Hello, I am about to graduate this December and want to invite my parents over for my graduation. I have the invitation letter from the University ready and was wondering how early should it reach to Nepal. I heard that currently there is 1 to 2 months wait time to get the visa interview so it seems like they need to get the date asap. I also heard that the invitation letter is required to get the date. Can I just send the scanned copy of the invitation letter to Nepal while they get the date, and let them present the original during the interview date.