Change any page meta title desc in Magento in controller

    public function indexAction()
    {
    	$this->loadLayout();
        $this->_initLayoutMessages('customer/session');
        $this->_initLayoutMessages('catalog/session');
        
        //load meta info 
        $head = $this->getLayout()->getBlock('head');
        $head->setTitle("GoGear - support & warranty");
        $head->setKeywords("gogear, support, warranty, contact us, faq, manual, guarantee");
        $head->setDescription("Get help on your products and warranty information by selecting your country.");
         
        
        $this->renderLayout();
    }