I registered and did the DNS setting my domain is .com and is set up on wordpress I have added my site and google spider bot has crawled my site But it is also crawling .wordpress.com Please tell me what to disallow in robots.txt .
I think you can do this with .htaccess, redirect all traffic from .wordpress.com subdomain to your .com domain, and this way the spiders won't revisit your .wordpress.com subdomain again.
Hey you will find plenty of 301 redirection examples on the web. Just modify the basic things and you will done with your redirection. But if you have some pages in that .wordpress.com then you need to be careful while doing the redirection.