I do not understand why you have not followed advice given in earlier thread but here is your code cleaned somewhat and running. Pls state what you want to achieve.

use strict;
use warnings;

my %output;
while (my $line = <DATA>){
    chomp $line;
    my @field = split /\s+/, $line;
    my $fulllookupKey = $field[1]."\t".  $field[2]."\t". $field[3]."\t
+".$field[4]."\t".$field[5];
    my $RescatKey = $field[0];
    my $RessubcatKey = $field[1];
    my $MasterSrkey = $field[2];

    $output{$RescatKey}{$RessubcatKey}{$fulllookupKey}->[0] += $field[
+6];
    $output{$RescatKey}{$RessubcatKey}{$fulllookupKey}->[1] += $field[
+7];
}   
   
for my $k1 (sort keys %output){
    print "$k1\n";
    for my $k2 ( sort keys %{ $output{$k1} }  ) {
                print "\t$k2\n";
                for my $k3 ( sort keys %{ $output{$k1}{$k2} }  ) {
                        my $Source = substr($k3,15,100);
                        print "\t\t$Source $output{$k1}{$k2}{$k3}->[0]
+\t$output{$k1}{$k2}{$k3}->[1]\n";
                        print "\t\t$Source\t TOTAL \t$output{$k1}{$k2}
+{$k3}->[1]\t$output{$k1}{$k2}{$k3}->[0]\n";
                }
        }
}

__DATA__
Summary     Detial_Summary  EMC CHECK  abcdefghi AZ_checker 1 20.32
Summary     Detial_Summary  EMC CHECK  abcdefghi AZ_checker 1 24.00
Summary     Detial_Summary  EMC CHECK  KBCDEFGHI AZ_checker 1 10.00
Summary     Detial_Summary  EMC CHECK  KBCDEFGHI AZ_checker 1 14.00
Summary1 Detial_Summary1 EMC CHECK1 abcdefghi AZ_checker 1 20.59
Summary1 Detial_Summary1 EMC CHECK1 abcdefghi AZ_checker 1 24.00
Summary1 Detial_Summary1 EMC CHECK1 HGIJHKKIF AZ_checker 1 10.00
Summary1 Detial_Summary1 EMC CHECK1 HGIJHKKIF AZ_checker 1 14.00
[download]

Hi, I have incorporated the advice given earlier. but i want to achive the output as below.

Summary................................................
      Detial_Summary...................................
        EMC CHECK  abcdefghi AZ_checker 2 44.32
        EMC CHECK  KBCDEFGHI AZ_checker 2 24.00
        EMC CHECK    TOTAL        4 64.32
        EMC CHECK1 abcdefghi AZ_checker 2 44.59 
        EMC CHECK1 HGIJHKKIF AZ_checker 2 24.00
        EMC CHECK1    TOTAL        4 68.59
      Detial_Summary        TOTAL        8 132.91
Summary                TOTAL        8 132.91
[download]

The output what i am getting now:

Summary................................................
      Detial_Summary...................................
                EMC_CHECK      abcdefghi       AZ-Chandler 44.32      
+2
                EMC_CHECK      abcdefghi       AZ-Chandler      TOTAL 
+ 44.32      2
                EMC_CHECK      KBCDEFGHI       AZ-Chandler 24.00      
+2
        EMC_CHECK      abcdefghi       AZ-Chandler      TOTAL  24.00  
+    2
[download]

but i want output as below:

Summary................................................
      Detial_Summary...................................
                EMC_CHECK      abcdefghi       AZ-Chandler 44.32      
+2
                EMC_CHECK      KBCDEFGHI       AZ-Chandler 24.00      
+2
        EMC_CHECK                      TOTAL       68.32      4
      Detial_Summary        TOTAL        68.32      4
Summary                TOTAL        68.32      4
[download]