Answer by Martin v. Löwis for xsl: Copy the entire xml except a parent node but keep its child node

<xsl:stylesheet version="1.0"xmlns:xsl="http://www.w3.org/1999/XSL/Transform"><xsl:template match="LoginID"><xsl:apply-templates select="PAN"/></xsl:template><xsl:template match="*"><xsl:copy><xsl:apply-templates/></xsl:copy></xsl:template></xsl:stylesheet>