what is the easiest and fastest way to decrease alexa??
i know the one and only way to decrease alexa, large number of traffic but if anyone knows any other solution it will be great.

Create articles about Alexa to decrease alexa  ranking.

No any better idea..!
Well i guess the only way to increase Traffic and if not possible organic then can try Advertising, it would decrease the alexa rank quickly

Alexa ranking can be decreased by installing a Alexa toolbar and visiting it often.
Had I been you, I wouldn't have bothered about Alexa. Alexa stats are not that accurate and depends on the Alexa toolbar.
Don't lose sleep over something that is not accurate.

Continuous SEO activities can decrease your alexa ranking fast and directly proportional to traffic.