>Pankaj has seen one example of 
>your input data, and leapt to the conclusion that all other examples 
>will be the same.

Michael is quite right. I just tried to give a clue to get the job done. 
Though it will fail in case if you xml seems like 

<book><title><indexterm>Violent Extremism</indexterm> Sacred Values, and 
what it Means <indexterm>to be Human</indexterm></title></book>

I believe that you are trying to ignore text, whatever appears in child 
element <indexterm>. For that I would suggest to use template rules, which 
already suggested to you:

<xsl:template match="title">
<xsl:apply-templates/>
</xsl:template>

Suppress the indexterm:

<xsl:template match="indexterm"/>

Thanks for pointing that Michael.

--Pankaj