Just trying to be helpful here...

> <author><given-name>Anand</given-name><surname>Asundi</surname>
> <cross-ref refid="aff1"><sup>a</sup></cross-ref></author>

> Please help in getting the required output.

I would normally have a look, but you haven't indented the XML so I
pretty much instantly decide not to bother figuring out what the
problem is...  I would recommend re-posting with good quality sample
input.



-- 
Andrew Welch
http://andrewjwelch.com
Kernow: http://kernowforsaxon.sf.net/