public void Get(string para1, string para2)
 {
     string fname = para1 + "_" + para2;
     string mergedPdfSavePath = mergedfilepath + fname + ".pdf";
     PDFService ps = new PDFService();
     if (ps.GenerateCombinedPdfForTravelAllowance(LoadApplicationFilesList(para1, Convert.ToInt32(para2)), mergedPdfSavePath) != -1)
     {
         string path = mergedPdfSavePath;
         DownloadFile(path, System.IO.Path.GetFileName(path));
     }
 }