How to start the SEO for a site?

1.Keyword research ; This is the first and most important phase of search engine optimization.Think what people can type in different search engine to find your website.Target the keyword and make a themed site using these keywords.
2.Meta Tags : Put your targeted keywords in title tag, Description Tag etc.
3.Content : Everybody knows for the search engine optimization content is the king.So use your targeted keywords in content dont overdo it,maintain the proper density.
4.Link Building : After uploading your website and submitting it into different search engines just start link building campaign.Take care about anchor text use your targeted keywors in anchor text but dont overdo this.