Hello Umesh,

I know your post is old, but I am posting the solution which wored for me so that it can be useful for others.

I got similar code here http://scn.sap.com/docs/DOC-6093 and modified it according to my requirement.

This is the code, hope this will help:
       
        CrystalDecisions.CrystalReports.Engine.ReportDocument reportDocument = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
        ISCDReportClientDocument reportClientDocument;

        CrystalDecisions.ReportAppServer.ReportDefModel.Section mySection;

        CrystalDecisions.ReportAppServer.ReportDefModel.PictureObject myPicture;

        //load the main report
        reportDocument.Load(Server.MapPath("CrystalReport.rpt"));

        //cast it as a reportclientdocument
        reportClientDocument = reportDocument.ReportClientDocument;

        //grab the specific section of the report that we want to put the picture in
        mySection = reportClientDocument.ReportDefController.ReportDefinition.ReportHeaderArea.Sections[0];

        //import the picture object into the main report
        myPicture = reportClientDocument.ReportDefController.ReportObjectController.ImportPicture(Server.MapPath("nm.jpg"), mySection, 1, 1);
               
        //view the report
        CrystalReportViewer1.ReportSource = reportDocument;

You can get more samples from here:
http://wiki.sdn.sap.com/wiki/display/BOBJ/NET+RAS+SDK+Samples

Thanks,
NMathur


Edited by nmathur - 24 Jul 2012 at 11:27pm