Thanks a lot guys ;) After few more modifications it worked... Now I have another problem and below is my code and how I want to get the output.I want to give serial number based on the value1 and value2.
Here is my code

#!/usr/bin/perl

my %query_score;
while ( <DATA> )

{
    chomp;
    ($value1,$value2,$Mark,$Name,$Country) = split(/\t/,$_);
    push( @{ $query_score{"$Name:$Country"}{position} },$value2);
    $query_score{"$Name:$Country"}{Mark} = $Mark;
    $query_score{"$Name:$Country"}{Start} = $value1;
   
}
foreach $key ( sort keys %query_score )
{
    ($Name,$Country) = split(/:/,$key);
    @positions =  sort @{ $query_score{$key}{position} };
    $Mark = $query_score{$key}{Mark};
    $value1 = $query_score{$key}{Start};
    $min = shift(@positions);
    $max = pop(@positions);
    print("$value1\t$value2\t$Mark\t$Country\t$min\t$max\n");
   
}


__DATA__
532     1148    a       andrew2  Norway
1547    1573    b       mathew3  US
2013    2190    c       mathew  US
2096    2158    d       mathew  US
2896    2980    e       docker5   UK
3919    4622    f       king4  Aus
4180    4353    g    king    Aus
6621    6758    h    lover4    Canada
7475    7568    i    nun8    Mexico
7645    7725    j    brazil9    Brazil
7817    8008    k    brazil9    Brazil
8172    8309    l    brazil9    Brazil
8399    8536    m    brazil9    Brazil
[download]

I am getting an OUTPUT like this:-

3919    4622    f       king4  Aus    8536                
8399    8536    m    Brazil    7725    8536
4180    8536    g    Aus    4353    
6621    8536    h    Canada    6758    
7475    8536    i    Mexico    7568
[download]

BUT I want my output to be like this:-

Value1  Value2  Mark   Name    Country    SerialNo
532     1148    a       andrew2  Norway   start
1547    1573    b       mathew3  US       start
2013    2190    c       mathew  US        between
2096    2158    d       mathew  US        end
2896    2980    e       docker5   UK      start
3919    4622    f       king4  Aus        start
4180    4353    g    king    Aus       start
6621    6758    h    lover4    Canada    start
7475    7568    i    nun8    Mexico    start
7645    7725    j    brazil9    Brazil    start
7817    8008    k    brazil9    Brazil    between
8172    8309    l    brazil9    Brazil    between
8399    8536    m    brazil9    Brazil    end
[download]

Thanks in advance

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