EZA didn't accept my that article and the message was,"Not enough original and informative article." That's it.
I submitted the same article on Buzzle(without changing anything), and they accepted it.
It's like EZA going to beat each and every article directory. Now, they want something new and informative. By the way, it's good I am happy about it. But I was surprised to see that they are going tougher than buzzle now.