Google not indexing pages? Reason ?

[FONT=Garamond, Garamond, serif]Hi all...[/FONT]​

[FONT=Garamond, Garamond, serif]Two of my inner pages were indexed by google previously but now they are not showing up in index.......After resubmissions for two times, still google has not indexed them from longer time......those two pages are:-[/FONT]​

[FONT=Garamond, Garamond, serif]sip mutual funds in india[/FONT]​

[FONT=Garamond, Garamond, serif]Interactive english learning software[/FONT]​

[FONT=Garamond, Garamond, serif]Any problem in pages ? What must be the reason for not indexing? Kindly provide your valubale suggestions......[/FONT]​