[xsl] Duplicate title issue

["J.S. Rawat jogarawat@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Hi Team,
I am facing duplicate topicref problem. Please help.
Output
<map id="d1e1" xml:lang="en-us">
   <title>1.0 Electrical</title>
   <topicref1 navtitle="1.0 Electrical" href="electrical.dita">
      <topicref4 navtitle="1.1 Wire" href="wire.dita"/>
      <topicref2 navtitle="1.2 Switches" href="switches.dita">
         <topicref4 navtitle="1.2.1 Switch type" href="switch_type.dita"/>
         <topicref4 navtitle="1.2.2 How connected" href="how_th.dita"/>
         <topicref4 navtitle="1.2.3 Switch operates" href="how_the.dita"/>
         <topicref4 navtitle="1.2.4 Function" href="function.dita"/>
         <topicref2 navtitle="1.3 Specialty switches"
href="specialty_switches.dita"/>
      </topicref2>
      <topicref4 navtitle="1.2.1 Switch type" href="switch_type.dita"/>
      <topicref4 navtitle="1.2.2 How connected" href="how_th.dita"/>
      <topicref4 navtitle="1.2.3 Switch operates" href="how_the.dita"/>
      <topicref4 navtitle="1.2.4 Function" href="function.dita"/>
      <topicref2 navtitle="1.3 Specialty switches"
href="specialty_switches.dita"/>
   </topicref1>
   <topicref1 navtitle="2.0 Switch symbols (Switcheally)"
href="switch.dita"/>
</map>

Exptected Output
<map id="d1e1" xml:lang="en-us">
   <title>1.0 Electrical</title>
   <topicref1 navtitle="1.0 Electrical" href="electrical.dita">
      <topicref2 navtitle="1.1 Wire" href="wire.dita"/>
      <topicref2 navtitle="1.2 Switches" href="switches.dita">
         <topicref4 navtitle="1.2.1 Switch type" href="switch_type.dita"/>
         <topicref4 navtitle="1.2.2 How connected" href="how_th.dita"/>
         <topicref4 navtitle="1.2.3 Switch operates" href="how_the.dita"/>
         <topicref4 navtitle="1.2.4 Function" href="function.dita"/>
       </topicref2
       <topicref2 navtitle="1.3 Specialty switches"
href="specialty_switches.dita"/>
   </topicref1>
   <topicref1 navtitle="2.0 Switch symbols (Switcheally)"
href="switch.dita"/>
</map>

xslt
 <!--to Generate chapter TOC and filename will be .ditamap-->
 <xsl:template match="topics">
  <xsl:variable name="folder-name"><xsl:value-of
select="@folder"/></xsl:variable>
  <xsl:variable name="title"><xsl:value-of
select="translate(topic[1]/title, ' - ', '_')"/></xsl:variable>
  <xsl:variable name="topicName" select="lower-case(translate($title,
' ,.()?[]&amp;b":/%#', '_'))"/>
  <xsl:result-document
href="argos-dita/{$folder-name}/m_{$topicName}.ditamap" method="xml">
   <map id="{generate-id()}" xml:lang="en-us">
    <title>
     <xsl:value-of select="topic[1]/title"/>
    </title>
    <xsl:for-each select="topic[@type = '1']">
     <xsl:variable name="subsection" select="@filename"/>
     <topicref1 href="{$subsection}.dita" navtitle="{title}">
      <xsl:if test="body[not(child::*)]">
       <xsl:attribute name="topichead">yes</xsl:attribute>
      </xsl:if>
      <xsl:if test="following-sibling::*[1][self::topic[@type = '2']] or
                    following-sibling::*[1][self::topic[@type = '3']] or
                    following-sibling::*[1][self::topic[@type = '4']]">
        <xsl:call-template name="pullObjects"/>
      </xsl:if>
     </topicref1>
    </xsl:for-each>
    <xsl:call-template name="pullObjects"/>
   </map>
  </xsl:result-document>
 </xsl:template>

 <xsl:template match="topic[@type='2']" mode="pullObjects">
  <xsl:variable name="subsection" select="@filename"/>
  <topicref2 navtitle="{title}" href="{$subsection}.dita">
   <xsl:if test="body[not(child::*)]">
    <xsl:attribute name="topichead">yes</xsl:attribute>
   </xsl:if>
   <xsl:if test="following-sibling::*[1][self::topic[@type = '3']] or
                 following-sibling::*[1][self::topic[@type = '4']]">
    <xsl:call-template name="pullObjects"/>
   </xsl:if>
  </topicref2>
  <xsl:call-template name="pullObjects"/>
 </xsl:template>

 <xsl:template match="topic[@type='3']" mode="pullObjects">
  <xsl:variable name="subsection" select="@filename"/>
  <topicref4 navtitle="{title}" href="{$subsection}.dita">
   <xsl:if test="body[not(child::*)]">
    <xsl:attribute name="topichead">yes</xsl:attribute>
   </xsl:if>
   <xsl:if test="following-sibling::*[1][self::topic[@type = '4']] or
                 following-sibling::*[1][self::topic[@type = '5']]">
    <xsl:call-template name="pullObjects"/>
   </xsl:if>
  </topicref4>
  <xsl:call-template name="pullObjects"/>
 </xsl:template>

 <xsl:template match="topic[@type='4']" mode="pullObjects">
  <xsl:variable name="subsection" select="@filename"/>
  <topicref4 navtitle="{title}" href="{$subsection}.dita">
   <xsl:if test="body[not(child::*)]">
    <xsl:attribute name="topichead">yes</xsl:attribute>
   </xsl:if>
  </topicref4>
  <xsl:call-template name="pullObjects"/>
 </xsl:template>

 <xsl:template name="pullObjects">
  <xsl:apply-templates select="following-sibling::*[1][self::topic[@type='2']
                                                    or self::topic[@type='3']
                                                    or
self::topic[@type='4']]" mode="pullObjects"/>
 </xsl:template>

thanks
...JSR