Sorting xml based on a tag value

If we want to sort an xml based on a field's value, we can use the following approch

Say for e.g  This is the source xml

<?xml version="1.0" encoding="UTF-8"?>
<OrganizationList>
   <Organization>
      <Name>Bharath</Name>
      <System>automotive</System>
      <main>Y</main>
   </Organization>
   <Organization>
      <Name>ATP</Name>
      <System>supply</System>
      <main>N</main>
   </Organization>
   <Organization>
      <Name>BSNL</Name>
      <System>service</System>
      <main>Y</main>
   </Organization>
</OrganizationList>

If we want to sort the above xml based on the value of main tag we can use the following approach

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" exclude-result-prefixes="xsl">
   <xsl:template match="node()">
      <xsl:copy>
         <xsl:apply-templates />
      </xsl:copy>
   </xsl:template>
   <xsl:template match="OrganizationList">
      <xsl:copy>
         <xsl:apply-templates>
            <xsl:sort order="descending" select="main" />
         </xsl:apply-templates>
      </xsl:copy>
   </xsl:template>
</xsl:stylesheet>

The result will be as shown below

<?xml version="1.0" encoding="UTF-8"?>
<OrganizationList>
   <Organization>
      <Name>Bharath</Name>
      <System>automotive</System>
      <main>Y</main>
   </Organization>
   <Organization>
      <Name>BSNL</Name>
      <System>service</System>
      <main>Y</main>
   </Organization>
   <Organization>
      <Name>ATP</Name>
      <System>supply</System>
      <main>N</main>
   </Organization>
</OrganizationList>