Add Sku column in products ordered report grid magento
Kindly open app\code\core\Mage\Adminhtml\Block\Report\Product\Sold\Grid.php and put the below code in _prepareColumns() function
You can move Grid.php in your local folder as well.
$this->addColumn('sku', array(
'header' => Mage::helper('reports')->__('Product Sku'),
'index' =>'sku'
));
That's it. Enjoy Chandresh Rana's Coding...