Can any one please guide how to pass description data with '&" and other chars like (<, >, etc ).

Its gives me error like this  >>  4835 Unable to parse XML.XML document structures must start and end within the same entity.


URL : "http://crm.zoho.com/crm/private/xml/Leads/insertRecords?newFormat=1&apikey=$ZOHO_APIKEY&ticket=$ZOHO_TICKET&xmlData=";