He uses Devnagiri script (Hindi) again inside the book (when they're in Nepal, which is odd), when the guy carrying the load is giving it right back to the Captain.Yes I was going to talk about that. The guy carrying the load says "Kya hai ji ?", which roughly translates as, "What is it, sir ?" or "What the hell is it, sir ?" (more appropriate going by the emotions on the face of the person).
The language used is Hindi (widely popular/national language in India).
It's not odd, because Hindi is also spoken/understood in Nepal,and Indian labourers often cross borders (illegally) to earn money in there.
In fact
https://www.tintinologist.org/guides/books/20tibet.html gives the complete translation for this & the subsequent usage of Hindi & Chinese language.
As for the characters on the title page, since I dont have the book myself, I dunno about it. (I couldnt find the page online) :-(
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