Probably no visitor from my site goes to the website which are linked in my /links.php page.And in return i am not getting even single visitor from other websites /links.php pages. Is it with my alone? or specific purpose of Link Development is to have good repute in SE not snatching visitors from these websites? i will appreciate your comments.
Most people will not accept a link on your links.php page unless they just want the backlink. That's why people who link trade will accept links.php links and people who buy links tend to only accept front page or sitewide links.
Remember that content also plays a factor. Increased Link Popularity with a ton of content on your site equals a ton of traffic through the search engines for various keywords.