Similarly letters will probably be the preferred way to get in touch with the Tinites. Their tradition dictates that they bring a large amount of their retainers with them on official business (like to the coronation of Babur, if you noticed) so the ones of any importance to other nations probably have an army for an entourage.

Unless you're willing to house and feed anywhere from 500 to 100,000 soldiers, inviting a Tinite official of some sort over for a talk isn't a good idea.