From 2600 pages to 1500 in 2 weeks....www .homedit.com is the site... The site is 1.5 year old, have strong back links I really appreciate if someone could help me with this..
Well you need some effort, try to submit it again in different social bookmarking sites so that it will be index again.
Find out the reason why this happened. If you have changed the theme, domain or getting some irrelevant links to those pages then it could be another reason. Find out what are the changes you have made to your website and you will find out the reason.