Problem with index url's in google

My index url's dropped very fast in recent time. i have not changed my site much. can someone suggest to how better i optimize to get more indexed url's
Thanks in Advance

 

Tough to say without seeing your site. It could be from non-unique content, title tags, or for some other reason.

 

I am facing same problem with mine site. Mine internal pages not indexed and cached. I have done lot of work on that internal pages

 

maybe your competitor is the one getting better
you want to get more pages indexed or getting better rank on SERP?
just get more links

 

First do you have an site map..you need that..next are you using your keywords in your title.

 

Put xml site-map,make sure you put good title tag & meta tag.try to make relevant back link.