tamilvananmt on "Website is redirecting to other site"

Hi,
My website(http://www.megrontech.co.uk) ,but it is redirecting to other site(www.vipmkbags.com).If you enter url in browser its working.But if you do google,bing or yahoo search, it redirects to other site(www.vipmkbags.com)
I am struggling to fix this issue since last week.Please help me.
I checked with my webhost provider they are saying ,you site is not hacked,google database is not updated .I checked all files in my ftp server,there is no malware code.