CodeIgniter PHP Apache 500 Internal Server Error

I did a project in CodeIgniter. It's working fine on my localhost, but giving "500 Internal Server Error" on the remote server. This is my .htaccess file content:

RewriteEngine On
RewriteBase /ezgov
RewriteCond %{REQUEST_URI} ^system.*
RewriteRule ^(.*)$ /index.php/$1 [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]