Is it necessary to build backlinks in subpages or just the main index page for better SEO?

[IvanB]

Is it worthless to build backlinks for subpages I want ranked higher on google? Does it affect page rank? And what about submissions?

[Hogward]

For each page you have different keywords. Target the keywords and do the lnk building strategies. So that you will get rank in the search engine for the inner page too. It is better to optimize for both the home page and inner pages.

[Nemanja]

It is a must!

[rain22]

if you can make back links for sub pages, its better. don't just limit to the main page

[idreesfarooq]

Remember, backlink is a backlink no matters either it is from your own site or some external source. If you want to build your own site backlinks, use YARPP( Yet another Related Post Plugin) for WordPress. It will increase your backlinks in no-time by creating internal related backlinks

[seopro]

Backlinks to all main pages of website show better growth.. then backlinks only for homepage.