How do I enable recording option in the BigBlueButton module?
My problem is resolved. I have pass record=true in setting array of bbb.module file. Please see below code 

function bbb_init_meeting($node = NULL, $params = array()) {
  $welcome     = variable_get('bbb_content_type_welcome_'     . $node-&gt;type, '');
  $dialNumber  = variable_get('bbb_content_type_dialNumber_'  . $node-&gt;type, '');
  $moderatorPW = variable_get('bbb_content_type_moderatorPW_' . $node-&gt;type, '');
  $attendeePW  = variable_get('bbb_content_type_attendeePW_'  . $node-&gt;type, '');
  $logoutURL   = variable_get('bbb_content_type_logoutURL_'   . $node-&gt;type, '');
  $settings = array(
    'nid'          =&gt; $node-&gt;nid,
    'name'         =&gt; $node-&gt;title,
    'meetingID'    =&gt; bbb_create_meeting_id($node-&gt;nid),
    'attendeePW'   =&gt; !empty($attendeePW) ? $attendeePW : user_password(),
    'moderatorPW'  =&gt; !empty($moderatorPW) ? $moderatorPW : user_password(),
    'welcome'      =&gt; !empty($welcome) ? $welcome : t('Welcome to @title', array('@title' =&gt; $node-&gt;title)),
    'dialNumber'   =&gt; $dialNumber  ? $dialNumber  : NULL,
    // TODO: This is limited to 90000 voice bridges and may
    // collide sooner, as rand() may return x twice in a row
    'voiceBridge'  =&gt; rand(10000, 99999),
    'logoutURL'    =&gt; $logoutURL, //TODO: make absolute, as soon as supported
    'initialized'  =&gt; 0,
    'created'      =&gt; time(),
    'record' =&gt; 'true', 
    'duration' =&gt; '10',  
  );
  $params = array_merge($params, $settings);
  return $params;
}