In the last month i get into a serious problem my keyword ranking in google get very low suddenly. I do not know why?

Some one please give me the trick to recover back my position in Google search Engine.
Thank you for your support.

hi.
Update your site time to time. use good backlinks and if required make some changes in your content.

Changing your content will help.
But this type of problem were generally seen in month of Dec and January because of festive season.
So keep checking the Google analytic I hope  u will find normal traffic.

Avoid duplicate content issue and don't use duplicate or copied content on your website. Try to build some quality links from reputed websites.

HI.
Sometimes it happens and may be after few days you will get your page ranking in normal stage otherwise make little changes in your content.

In my opinion you should update your meta tag and description with use of keywords. You can also submit your website in quality directories and social bookmarking websites for better improvement in search engine.

May be your website is the victim of Google Dance. It happens some times. Keep working on your website.  Another possible reason is loss of backlinks. Continue building quality links for it.