#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;

my %HoA;
while (<>) {
    chomp;
    if ( $. <= 12 ) {
	if (index($_, ',') != -1) {
	    push @{ $HoA{$.} }, split(/,/, );
            $. = 0 if $. == 12; # reset line number
	}
	else {
	    warn "Line could not be parsed: $_\n";
	}
    }
} continue {
    close ARGV if eof;
}

print Dumper \%HoA;

__END__

$ perl test.pl test.csv
$VAR1 = {
          '5' => [
                   'Anand',
                   '2',
                   '2',
                   '2',
                   '2',
                   'tre'
                 ],
          '1' => [
                   'Anand',
                   '1',
                   '2',
                   '3',
                   '4',
                   'xyz'
                 ],
          '3' => [
                   'Anand',
                   '3',
                   '4',
                   '4',
                   '4',
                   'ert'
                 ],
          '2' => [
                   'Anand',
                   '2',
                   '3',
                   '4',
                   '5',
                   'wer'
                 ],
          '4' => [
                   'seetha',
                   '1',
                   '2',
                   '3',
                   '4',
                   'rew'
                 ]
        };