Joomla redirect after email activation

[Note: Tested in Joomla 2.5]
Step:1
Open the file: home directory/components/com_users/controllers/registration.php


Step:2
Search the below code near line:68


if ($useractivation == 0)
{
$this->setMessage(JText::_('COM_USERS_REGISTRATION_SAVE_SUCCESS'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=login', false));
}
elseif ($useractivation == 1)
{
$this->setMessage(JText::_('COM_USERS_REGISTRATION_ACTIVATE_SUCCESS'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=login', false));
}
elseif ($return->getParam('activate'))
{
$this->setMessage(JText::_('COM_USERS_REGISTRATION_VERIFY_SUCCESS'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=registration&layout=complete', false));
}
else
{
$this->setMessage(JText::_('COM_USERS_REGISTRATION_ADMINACTIVATE_SUCCESS'));
$this->setRedirect(JRoute::_('index.php?option=com_users&view=registration&layout=complete', false));
}

Step:3

After email activation. set Custom redirect to home page

$this->setRedirect('index.php');

Replace the below line with above code

$this->setRedirect(JRoute::_('index.php?option=com_users&view=login', false));