The below xsl code works fine and getting required output....but now I have
receive the xml file from client where the <p id="doe13"> contains so the
below xsl code is failing to match the cases......what needs to be done
here?

To the best of my ability I am not able to understand your question.
You need to explain more clearly.

       <xsl:preserve-space elements="*"/>
       <xsl:strip-space elements="*"/>

As I said earlier, the above combination of preserve-space and
strip-space will have no effect.

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Regards,
Mukul Gandhi