Actually it looks like $$titlename will dereference the scalar instead: 
perl -wle 'use strict; my $bar = 3; my $foo = \$bar; print "$$foo"'
# outputs:  3

[download]
But OP probably doesn't want to use $titlename as a scalar ref .. so the line qq[Title[\@Name="$$titlename"]] => should probably be: 
qq[Title[\@Name="$$titlename"]] =>

[download]

to OP: use strict; and use warnings; would have caught this saying something like Can't use string ("MyTitleString") as a SCALAR ref while "strict refs" in use at foo.pl line 1234.

In reply to Re^2: Problem in parsing XML file using XMl::Twig by davidrw
in thread Problem in parsing XML file using XMl::Twig by ramya2005

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