image page is not opening in wordpress…

Hi,

i have a posting related to natural food and if i click the any image on that post, it will reopen the same page… say for example on first image the link is http://twitterinfos.com/health-and-lifestyle/natural-food/natural-food/attachment/natural-foods/ but it is redirecting to http://twitterinfos.com/health-and-lifestyle/natural-food/natural-food/

I was able to open in http://twitterinfos.com/health-and-lifestyle/natural-food/natural-food/attachment/natural-foods/ few months ago and i am sure about that. on that page i am able to see the image with description with next and previous option.

Hope you could help me…