Hi Stupida, I am sorry; I did not see your question earlier as I had not logged in Sajha for a long time. You probably already know by now documents like 'permission to work in foreign land' is very circumstantial and without even having any documents on hand, one can convince the officials at Tribhuwan airport simple by answering the basic questions. In your case: since you produced related documents earlier, they probably did not question about it. And, if they did, you must have had reasoned your way out of it.