Sql-server – Send email with multiple attachment report in PDF through SQL Reporting Services

I am using SQL 2008 Reporting Services. I am opening the report in browser after setting the parameters from application. I create subscription of report from code, which sends email along with attachment in PDF.

But I want to create subscription of multiple reports from code and one email should send to client along with multiple PDF attachments. (Note: no need to send email against each subscription)
I tried myself but not find any solution. Could you please guide me that how can I send email with multiple PDF attachment reports data in one mail.

Or any other way to achieve this goal that sends multiple reports in PDF format in one email?

Code is given below which I am using for create subscription. It will send email along with attachment. But as I mention above that I want multiple attachment in one email.

RSServiceReference05.ReportingService2005SoapClient rs = new RSServiceReference05.ReportingService2005SoapClient();

rs.ClientCredentials.Windows.AllowedImpersonationLevel = new System.Security.Principal.TokenImpersonationLevel();            

string batchID = string.Empty;
RSServiceReference05.ServerInfoHeader infoHeader = rs.CreateBatch(out batchID);

RSServiceReference05.BatchHeader bh = new RSServiceReference05.BatchHeader()
            {
                BatchID = batchID,
                AnyAttr = infoHeader.AnyAttr
            };                    

string desc = "Report is attached.";
string eventType = "TimedSubscription";
DateTime dt = DateTime.Now;
string scheduleXml = "<ScheduleDefinition xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"><StartDateTime xmlns=\"http://schemas.microsoft.com/sqlserver/2006/03/15/reporting/reportingservices\">" + dt.AddMinutes(3).ToString("dd/MMM/yyyy HH:mm:ss")+"+05:00</StartDateTime></ScheduleDefinition>";


RSServiceReference05.ParameterValue[] extensionParams = new RSServiceReference05.ParameterValue[7];
extensionParams[0] = new RSServiceReference05.ParameterValue();
extensionParams[0].Name = "TO";            
extensionParams[0].Value = txtEmailTo.Text;
extensionParams[1] = new RSServiceReference05.ParameterValue();
extensionParams[1].Name = "IncludeReport";
extensionParams[1].Value = "True";
extensionParams[2] = new RSServiceReference05.ParameterValue();
extensionParams[2].Name = "RenderFormat";
extensionParams[2].Value = "PDF";
extensionParams[3] = new RSServiceReference05.ParameterValue();
extensionParams[3].Name = "Subject";           
extensionParams[3].Value = txtSubject.Text;
extensionParams[4] = new RSServiceReference05.ParameterValue();
extensionParams[4].Name = "Comment";            
extensionParams[4].Value = txtMessage.Text;
extensionParams[5] = new RSServiceReference05.ParameterValue();
extensionParams[5].Name = "IncludeLink";
extensionParams[5].Value = "False";
extensionParams[6] = new RSServiceReference05.ParameterValue();
extensionParams[6].Name = "Priority";
extensionParams[6].Value = "NORMAL";


string matchData = scheduleXml;

RSServiceReference05.ExtensionSettings extSettings = new RSServiceReference05.ExtensionSettings();            

extSettings.ParameterValues = extensionParams;
extSettings.Extension = "Report Server Email";
    string sub = "";
RSServiceReference05.ServerInfoHeader SubID = 
rs.CreateSubscription(bh, "/MyReports/MyTestReport", extSettings, desc, eventType, matchData, parameters, out sub);
RSServiceReference05.ServerInfoHeader EventID = rs.FireEvent(bh, "TimedSubscription", sub);
       rs.ExecuteBatch(bh);