Yeah, even I had layover for 14 hrs... It was the hardest time I ever had.. I had 4 luggages but they said you have only one.. no speaks to you properly.. I had connecting flight with British air, at midnight British Air personnels came took our passport saying that they need for luggage verification and dis not return for 4-5 hrs.... no one ever wished to talk about our lost passport...not the police non of them... anyway.. you have to be careful every time you give your any document to anyone.. they might not return your ticket as well.... As some pne already suggested.. better to have indian currency with you..... GOOD LUCK