Comment on Duplicate Content Penalty SEO by Sreekanth.
Thanks for your very detailed reply.
This website was developed by our old web developer, he left our company now. The domain details also not with us,it is in his reseller account, we only have the cpanel details.That is why we changed the domain on the renewal time. We used the same contents and design in the new domain also,but it is after the expiration of the old domain.And this website previously displayed in the front page of google.
Now is there any chance google reindex my site?