he has had a run-in with the Visa people at Hyderabad
Much more arcane than that. The BW and possibly Mrs BW (GW?) were denied boarding passes in BKK for a flight to CCU, since he had failed to do his research and get visas. India is NOT a 'visa on arrival' sort of gig, especially for Brits.
In airline terms, this makes him a no-show, since he failed to present for his flight with all required documents. It's all the T&Cs which he agreed when he made the booking....
As such, he may get his taxes and charges back but no more, which is the source of his angst. He doesn't seem to understand much about airline commercials for a CEO...
TA