I've re-posted your question at Bin packing problem variation repost (see[834245]). Perhaps you could answer some questions there.

my @only_unique = ();
my $index1 = scalar(@new_lot)+1;
#my $total_first = 0;
my @array_range = ();
my @temp_first = ();
my @Result_array =();
my @new_lot_dup = @new_lot;
my $insert_flag = 0;
do { my $total_first = 0; my @temp_first = (); my @array_range = (); m
+y @Result_array =();
    for(my $ab = 0;$ab <6 ;$ab++){
            my $random_one = int(rand(@new_lot_dup));
            if($random_one eq 0){$random_one = int(rand(@new_lot_dup))
+;}
            print $random_one."_::_".$A_services[$random_one-1]."\n";
            $total_first = $total_first+ $A_services[$random_one-1];
            push(@temp_first,$random_one);
            if(($ab >2) &&($ab<6) ){
                if(($total_first gt 840)    && ($total_first lt 900)){
                        push(@array_range,scalar(@temp_first)); print 
+"\n".$total_first."_:"."@array_range".":_ "."@temp_first"."\n\n";
                        foreach (@temp_first){push(@Result_array,$_);}
+  $insert_flag = 1;
                        last;
                }
            }
                
    }
}
until($insert_flag eq 1);

my$one = 0;
do{
    $one++;
    &Get_Other_Group();
    
    }
    until($one eq  $index1);

sub Get_Other_Group()
{
            my $insert_flag_inner = 0;
            do{ 
                my $total_second = 0; my @temp_second = ();
                for(my $vb = 0;$vb<6;$vb++)
                {
                    my $random_two = int(rand(@new_lot_dup));
                    if($random_two eq 0){$random_two = int(rand(@new_l
+ot_dup));}
                        #print $vb."IN FUNCTION ::".$random_two."_::_"
+.$A_services[$random_two-1]."\n";
                    $total_second = $total_second+ $A_services[$random
+_two-1];
                    push(@temp_second,$random_two);
                    ##### __ This is to Delete Duplicate Entry___#
                    #undef %saw;
                    #@temp_second = grep(!$saw{$_}++, @temp_second);
                    if(($vb >2) &&($vb<6) )
                    { print $vb."_::_ ";
                        if(($total_second gt 840)    && ($total_second
+ lt 900))
                        {    my $count_repeat = 0; print $total_second
+."****"."@temp_second"."\n";
                                for(my $mb = 0;$mb<scalar(@temp_second
+);$mb++)
                                {    
                                    for(my $cb = 0 ; $cb < scalar(@Res
+ult_array);$cb++)
                                    {
                                            if($temp_second[$mb] eq $R
+esult_array[$cb]){
                                                            $count_rep
+eat++;
                                            }
                                    }
                                }
                                if($count_repeat eq 0){
                                    push(@array_range,scalar(@temp_sec
+ond)); print "\n MAAAAA KAAAALI".$total_second."_:"."@array_range"."_
+_##_ "."@temp_second"."\n\n";
                                    foreach (@temp_second){push(@Resul
+t_array,$_);}  $insert_flag_inner = 1; last;
                                }
                        }
                    }
                }
            }until($insert_flag_inner eq 1);
}

print "\n"."@array_range"."_::_"."@Result_array"."\n";
print "+++++++++++++++++++++\n\n";
my $loop_limit = 0;
    for (my $gh = 0;$gh <scalar(@array_range);$gh++){
            my $disp_total = 0;
            for(my $ch = 0;$ch <$array_range[$gh];$ch++){
                    my $t_val = $Result_array[$loop_limit];
                    $disp_total = $disp_total+$A_services[$t_val-1];
                    print "$loop_limit _:: _".$t_val."_::_".$A_service
+s[$t_val-1]."  ";
                    $loop_limit++;
            } print $disp_total."\n";
    }
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