Running your code the HTML in $article (cut down) looks like

<form 
  action="" 
  id="raaga" 
  method="get" 
  name="raaga" 
  onsubmit="return validate(this);"
>
  <table 
    align="center" 
    border="0" 
    cellpadding="1" 
    cellspacing="2" 
    height="100%" 
    width="100%"
  >
    <tr>
     <!-- snipped -->
    </tr> 
  </table> 
</form>
[download]

There is one table but it doesn't have an id attribute. It has a width attribute of 100%. So your

my $table = $article->look_down(_tag=>'table',class=>'dataTbl',width=>
+"450");
[download]

won't find anything ($table will be undef).

There is a lot of javascript. When I point Firefox at that url the response does not contain a form with an id of raaga. What does the page look like when you log in?

Give a bit more detail on what you are trying to do.