You cannot come to know if a perfume is fake or original just by the looks of it. People are smart to make an exact copy of the bottle and fragrance.
I have bought a perfume from a leading store in Kuwait and I applied it, after 5 hours its dead nobody smells it not even you.
The one i bought from India the application was so intense that even after 24 hours of continuous partying, it still smelled amazing.
I then ran a quick survey in Kuwait from multiple outlets and friends. Lets just say i have proved my point right.
This is my personal opinion.
I also know of a guy who told me "Get me any of your expensive perfumes and I'll make it, just for 1/8th of the original amount, but it wouldn't last long"
Which gets me thinking what are the regulatory's in Kuwait for perfume authentications and sale in these expensive outlets.