Hi friends, Is these any way with the help of which i can remove back links created from directory submissions?
Try "Disavow Links" from: Google Webmaster Tools https://www.google.com/webmasters/tools/disavow-links-main?pli=1
Use a 301 how? I've used a lot of them in the past and it's now my opinion that they have completely lost their effectiveness. The sites that I did have existing 301s on starting losing a lot of rankings and I have been slowing phasing them all out. I have also done a test with the disavow tool on a few sites and saw little to no effect from using that. Now, when I have a site that is "messed up" for whatever reason - penalty, bad links, etc. - it's simply easier to just cut my losses and it move it to a brand new domain.