Had I been hit by Panda 4.2 Update?

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

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  Priya Gupta: Hi Every one,
  
  In one of my project traffic gradually decreasing as shown in fig. i searched many things but i am not get it. can any one tell me the reasons for this, and how can i improve my site traffic in google.
  Is panda 4.2 update effected on my site?
  
  Thanks.  ;
• 
  Kapil Bhardwaj: please you share you site url???
• 
  Priya Gupta: Thank you +Kapil Bhardwaj ;
  here you can find my site: ;http://www.vedantprojects.com/
• 
  Kapil Bhardwaj: Your website have no Good and quality back-links. Create Some Good and High quality back-links with Good Domain Authority sites. Use fresh content when you submit submissions. Don't do ;Directory Submission.. And Don't do Content Spamming...
  
  Do that and your ;traffic grow up.. (And abhi Indian market m property down chal rhi h, ek point y bhi h traffic down hone ka)
• 
  Priya Gupta: Thank you +Kapil Bhardwaj ;for your valuable suggestions.. ;
• 
  Rotimi Orimoloye: +Priya Gupta
  Yes, it could very possibly be Panda.
  John Mueller said its roll-out this time would be slow. (I believe it started rolling out sometime in July).
  
  But don't be too quick to blame Panda. Do more investigating.
  Is this drop in traffic that dramatic? (I mean, have you never seen it before?) ;
  Could it possibly be a seasonal thing? (look at historical data in your Google Analytics) (benchmark with industry data as well) ;
  What about a keyword research for your best keywords? What if the searches have reduced? I dunno - a major competitor is winning much traffic through a new popular app? ;
  
  Which were your best entry pages before? And which are they now?
  Do a search for the typical keywords that bring people to the former winning pages.
  
  There are many other checks but if this is too much stress for you then ;I guess all I'm saying is that you don't be quick to form conclusions, and take major steps that could adversely affect your site.
  There could be more than just one thing wrong........or possibly nothing at all. :)
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  Priya Gupta: Thank you +Rotimi Orimoloye ;