Google has different search engine for different country. Just example google.co.in for India and google.com.au for Australia.  Suppose Google has completely indexed my website. I want, my website will not be ranked in goolge.com.au for any keywords, but it will be ranked in goolge.co.in. Is it possible for not?

Let me know, if robot.txt file is useful for this..

Yes, you should have understanding of using robot.txt file for this question.

Quote from: apablates on December 28, 2012, 03:27:06 PM
Yes, you should have understanding of using robot.txt file for this question.

But dear, we can restrict search engine, not country via robots.txt file.

What is the robots.txt? Help me tot understand...

Yes, you have to make use of Robot.txt file this is the option to stop search engines to index your content.