can anyone tell me How to Block Adsense from Certain Country, i m getting huge invalid clicks from 1 country
You can download something like the MaxMind free GeoIP database, use that to identify the country of origin for your hits, and have your ad display function simply show blank space or some other image if it's a country you don't want clicking them.
HTML-only, with no backend scripting like PHP or ASP? In that case probably not. It requires making decisions on the server before choosing which content to send, so there has to be some programming.
The easiest way to hide Adsense for some countries, is use Google DFP for small business which is free hosted solution. How to Block AdSense Being Shown In Specific Countries http://www.youtube.com/dfp
It is really an horrible matter. I am using MaxMind to block Some specific countries cliks. These people can visit my page but are not able to click on the ads.
Thank you for share the idea of "MaxMind". You know my theory is "if you show another advertise or your own affiliates instead of adsense to specific country, it'll profitable then the blocking ads, And the constant clicker never able to understood that he is not clicking adsense That what DFP (Double Click for Publisher) do.