Please have a look into this

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  Jeewan Garg: +Jim Munro ;Please have a look into this.  ;Search query :  ;ppc expert in delhi.  ;my site is jeewangarg(dot)com  ;& other is ppcexpertdelhi(dot)com
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  Jim Munro: I am not an expert, +Jeewan Garg, but I used SEMrush to check the backlink profile of your competitor and it seems to me that they are using a private network of .com domains to run a linkfarm.
  
  It looks like they started building followed links with exact match anchor text around 2011 (about the same time as Google  ;introduced the failed Farmer and Panda updates). The content on this linkfarm is obviously rubbish but it looks like Google cannot see that. You could consider filing a spam report - that might knock them out but it won't affect your own ranking. Given the search term, the rest of those above you might be using the same tactic. Maybe file 20 more spam reports? :)
  
  I wonder if an expert like ;+Tim Capper ;would be interested in something like this? :)
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  Jeewan Garg:  ;+Jim Munro ; Where to file the spam report, Can you share the link for the same
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  Jim Munro: It's in webmaster tools, you must be logged in to use it: ;https://www.google.com/webmasters/tools/spamreport
  I think this is the one you want: https://www.google.com/webmasters/tools/spamreportform?hl=en
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  Jeewan Garg: +Victor Castillejos ;Thank You
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  Tim Capper: Not sure how that site has not been nailed yet >> all optimised PPC Expert Deli links.
  
  Granted that is their name, but they are so unnatural, I would have thought Gbot would have sniffed those out by now