First topic message reminder :

I have achieved so many keyword for my website but there is no more unique visitors so anybody please suggest me that how to get more and more unique visitors on my website.

You can start doing social media activities on Facebook, Twitter, Google Plus, Linkedin and Pinterest. These activities can help you to increase the unique visitors on your website.

best way to keep getting visitors to your website is by contineouslly working on offpage and unique content.
Content plays a major role in getting unique visitors as the site is visited very often by search engines.

A unique visitor is the first person to visit your website or blog. Analysis tools such as Google Analytics, Bing Analytics, Yandesk, and other tracking tools use the visitor's IP address, browser cookies, registration ID, and proxy to identify unique visitors.

You will get unique visitors if you take up new activities like
Blog Commenting
Forums
Directories
Social Bookmarking
Questions & Answers
Facebook Ads
Google Ads
Hope this helps.
I generally follow kuware.com for Marketing related info.