Magento : Delete all Products of Particular category id

Create one file and paste following code:


<?php
require_once ("app/Mage.php");
Mage::app('admin');
$category_id = your_cat_id;
$products = Mage::getModel('catalog/product')->getCollection();
foreach($products as $product){
 $categories = $product->getCategoryIds();
 if(in_array($category_id, $categories)) {
  $product_load = Mage::getSingleton('catalog/product')->load($product->getId());
  Mage::dispatchEvent('catalog_controller_product_delete', array('product' => $product_load));
  $product_load->delete();
 }
}
?>


And upload file on root of server and run as:

www.example.com/file_name.php