'Method1' => {
		'Name' => 'ABC',
		'File' => 'Beta.dat',
		'Category' => 'Methods',
		'Params' => 'ARGV'
	},
	'Method2' => {
		'Name' => 'MNO',
		'File' => 'Alpha.dat',
		'Category' => 'Functions',
		'Params' => 'ARGV'
	},
...
...
...
<br>

##</code><code>##

$temp1 = "";
$temp2 = "";
$temp3 = "";
for my $key1 (reverse sort { $myData{$b}{'Category'} cmp $myData{$a}{'Category'}} keys %myData) {
        $temp2 = "";
        my $categoryCounter=0;
        my $category = $myData{$key1}{'Category'};
        if($temp1 !~ /$category/i){
            $temp1 = $category;
        }
        for my $key2 (reverse sort {$myData{$b}{'File'} cmp $myData{$a}{'File'}} keys %myData) {
            my $fileName = $myData{$key2}{'File'};
            if($temp2 !~ /$fileName/i){
                $temp2 = $fileName;
            }
            $temp3 ="";
            my $fileCounter = 0;
            for my $key3 (reverse sort {$myData{$b}{'Name'} cmp $myData{$a}{'Name'}} keys %myData) {
                my $methodNo = $mydata{$key3}{'Name'};
                my $fileNameInner = $mydata{$key3}{'File'};
                if ($temp3 !~ /$methodNo/i) {
                    if (($category =~ /$mydata{$key3}{'Category'}/i) && ($fileName =~ /$fileNameInner/i)) {
                        if($categoryCounter == 0){
                            print "$category\n";
                            $categoryCounter++;
                        }
                        if($fileCounter == 0){
                        print "$fileName\n";
                        $fileCounter++;
                        }
                        print "$methodNo\n";
                    }
                    $temp3 = $fileNameInner;
                }
            }
            $fileCounter = 0;
        }
        $categoryCounter = 0;
    }