In my opinion Sitelinks are given to a site when your site is Aged, Decent & have very much Authority in the eyes of google. It needs Good original content & much authority backlinks for your site.
My Google webmaster tools account shows my website has 7 sitelinks but only 4 show up that too in a straight line. Backlinks, SEO, etc do not decide sitelinks. There are no methods or steps to achieve sitelinks. The most followed links on your homepage will likely be selected, in due course of time.
The "site links" shown are Google's way of showing you that a site has authority... and has been around for awhile. I don't believe I've ever seen site links appear under a site that has a PR less than 4, so take that for what it's worth. I believe keeping an updated sitemap would also be a good way of increasing your chance of Google featuring site links for your website.
it all depends on the quality of your site, the higher the respect (PR) and quality the more likely you are to gte a more prominent listing
I disagree about PR. My site SearchBliss has sitelinks for 2 years now, and our PR is a 3. It's domain age and quality. SearchBliss is 8 years old.
I agree, plus the inner main pages should have lots of backlinks. Only one of my site got Sitelinks (it's 9 years old) - none of the others did.
Those are called sitelinks and are automatically generated by Google. Keep building content and you will get those soon.
Thanks for the info mate, One Query You said its automatic, Is it just dependant on Content or other factors as well ?
Those links are mostly the popular pages from your site. e.g for Digitalpoint, the very first link is Buy, Sell Trade, which shows it is the most visited section of this forum.
Google Sitelinks is all about your site inner linking structure, and it's based on your visitors CTR for the main pages within your site.