How to get good rank to certain keywords on Google?

SEO only helps to promote a site an organic result pages of search engines. SEO is classified as On Page SEO and Off Page SEO.
On Page SEO( keep work on your site)

• Select the valuable keywords which are more related to your site with high search counts?
  Include the keywords on title tag, meta tag and in the unique content. Give bold option to the keywords where it would be presented?
  Image optimization- Add alt tag with title
  Include important html tags for creating the nice structure.
  add sitemap.html and sitemap.xml file
  Add robots.txt file(dont forget to mention your sitemap.xml path)
  Avoid canonical URL problem

Off Page SEO(keep work on other sites)
for link building

• General directory
  Social bookmarking
  Forum
  Article
  Blog commenting
  Press Releases
  Classifieds

others:

• Email marketing
  Video marketing

cheers,
Siva
Notes: Choose only dofollow sites for link building

If anybody wants to get ranking on google first thing that you want to do to see that you get a good page ranking on Google is to be sure your site is set up correctly. This involves setting up your pages with the correct meta tag and such so that the web crawlers and spiders can find you!

Another important aspect of getting a good rank on Google is to link your site to other high-profile sites. The spiders like sites that are well connected, but you don't want to link to just any sites out there. You want to choose sites that are related in some way to your business or service and are sites that are also highly ranked on Google.