What is the right way to do SEO after pigeon update?
 

I am wondering that my site has lost its ranking just because of not having the location determined in the content, keywords and Meta description. So it is right to use location based keywords to optimize websites for better rankings in different location based search queries? What is the right way to search engine optimization now?

Don't use local keywords in your website if your site actually doesn't located in a local place...

If you want to rank in a particular country then you can do it without adding location in content, with help of Google webmaster tool. Just need to set "International Targeting".