[swastik]

Well, you have more than 98% of your links with this anchor text: nexus tablets. Out of 118,824, about 118,100 use that anchor text. (I used ahrefs to get this)

That's a massive flag right there. Many of these are sitewide links (which, again, isn't going to help your case). The only saving grace is that many of these sites are pretty relevant to your site. Even then, it looks like it got hit by the Penguin update or the EMD update (since your domain's an exact match, and just about every link has that as the anchor text). There isn't a need for any manual action... there's a massive footprint as far as your backlinks profile are concerned.

Here's the good thing: It seems you have interlinked a number of your forums from their footer. That accounts for a majority of your links... and because it's in the footer, it's sitewide. Because you own those sites, you can perhaps remove the links.

The sites I have seen recover from Penguin have either removed the "bad" backlinks, or diluted their then backlink profile. In your case, it's a bit easier. If it's hit by the EMD update, I haven't seen any site recover from that yet so can't say anything.