my $doc = $xs1->XMLin($file, forcearray => 1, keyattr => {client_system => 'Customer Care'});

##</code><code>##

$VAR1 = {
    'client_system' => [
        {
         'business_area' => [
             {
              'component' => [
                  {
                   'component_lib' => [
                       {
                        'class_set' => [
                            {
                             'data_type' => '1',
                             'linked_characteristic_name' => '4-MTH-AVG-UTIL',
                             'version' => '2.0',
                             'name' => 'Active Strategy 2',
                             'is_protected' => 'false',
                             'base_class_set' => [
                                 {
                                  'interval' => [
                                      {
                                       'outcome' => [
                                           {
                                            'uniqueID' => '2',
                                            'displayPosition' => '1',
                                            'name' => 'low-199'
                                            }
                                        ],
                                        'is_Others' => ['false'],
                                        'range' => ['low-199'],
                                        'name' => 'low-199'                                                                                                                                                                                      
                                        },                                                                                                      
                                     {                                                                                                       
                                      'outcome' => [                                                                                                                                                              
                                         {                                                                                                                                                                
                                          'uniqueID' => '3',                                                                                                                                                                 
                                          'displayPosition' => '2',                                                                                                                                                                
                                          'name' => '200-499'
                                         }
                                      ],
                                   'is_Others' => ['false'],
                                   'range' => ['200-499'],
                                   'name' => '200-499'
                                   },
                                       {
                                         'outcome' => [
                                             {
                                              'uniqueID' => '4',
                                              'displayPosition' => '3',
                                              'name' => '500-899'
                                              }
                                          ],
                                      'is_Others' => ['false'],
                                      'range' => ['500-899'],
                                      'name' => '500-899'
                                      },
                                           {
                                            'outcome' => [
                                                {
                                                 'uniqueID' => '1',
                                                 'displayPosition' => '2147483647',
                                                 'name' => 'Others'
                                                 }
                                            ],
                                       'is_Others' => ['true'],
                                       'name' => 'Others'
                                       }
                                   ]
                               }
                           ],
                       'obj_info' => [
                           {
                            'obj_revision' => '1',
                            'version' => '2.0',
                            'name' => 'CS A1524 CD GM Active Strategy 2',
                            'library_unique_id' => '00000071',
                            }
                        ]
                    }
                ],
            'type' => 'class_set'
            }
        ]
    }
],
'name' => 'GM Business Area',
'analytics' => [
{}
]
       }
   ],
.
.
.

##</code><code>##

my $doc = $xs1->XMLin($file, forcearray => 1, keyattr => {client_system => 'Customer Care'});

foreach my $key (keys (%{$doc->{client_system}})){
	if($key eq 'business_area') {
		print $doc->{client_system}[$key]->{component}[0]->{component_lib}[0]->{class_set}[0]->{base_class_set[0]->{interval}{'range'}, "\n";
	}
}