Hi Suhas,

> I was expecting all top heading to be converted to slides but they
> appear as continuous text in exported pdf.  Both are attached. Not
> sure what all init is needed in .emacs for this to work.

When I export in 8.2.7b I get the attached file, which seems like what
you want.  I don't have any LaTeX/Beamer customizations in my .emacs.