public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "application/json";
var javascriptserializer = new JavaScriptSerializer();
javascriptserializer.MaxJsonLength = Int32.MaxValue;
string strJson = new StreamReader(context.Request.InputStream).ReadToEnd();
string strDecodedJson = HttpUtility.UrlDecode(strJson);
var CountryIdList = JsonConvert.DeserializeObject <MDMSVC.DC_CitywithMultipleCountry_Search_RQ> (strDecodedJson);
var result = masterSVc.GetCountrywiseCitiesList(CountryIdList);
context.Response.Write(javascriptserializer.Serialize(result));
}