HTTP Status-Code=403 (FORBIDDEN) for "http://vc1cgr01cgi006:9090/_vti_bin/client.svc/ProcessQuery"

Hi,

When i am trying to record and web application which is launched on Sharepoint i have below script

web_custom_request("ProcessQuery", 
        "URL=http://vc1cgr01cgi006:9090/_vti_bin/client.svc/ProcessQuery", 
        "Method=POST", 
        "Resource=0", 
        "RecContentType=application/json", 
        "Referer=http://vc1cgr01cgi006:9090/Lists/DSPortalBase/Home.aspx#", 
        "Snapshot=t2.inf", 
        "Mode=HTML", 
        "EncType=text/xml", 
        "Body=<Request xmlns=\"http://schemas.microsoft.com/sharepoint/clientquery/2009\" SchemaVersion=\"15.0.0.0\" LibraryVersion=\"15.0.0.0\" ApplicationName=\"Javascript Library\"><Actions><Query Id=\"23\" ObjectPathId=\"2\"><Query SelectAllProperties=\"true\"><Properties /></Query></Query><Query Id=\"24\" ObjectPathId=\"5\"><Query SelectAllProperties=\"true\"><Properties /></Query></Query></Actions><ObjectPaths><Property Id=\"2\" ParentId=\"0\" Name=\"Site\" /><Property Id=\"5\" ParentId=\"0\" Name=\""
        "Web\" /><StaticProperty Id=\"0\" TypeId=\"{3747adcd-a3c3-41b9-bfab-4a64dd2f1e0a}\" Name=\"Current\" /></ObjectPaths></Request>", 
        LAST);

But when i am replaying the script i am getting HTTP Status-Code=403 (FORBIDDEN) for "http://vc1cgr01cgi006:9090/_vti_bin/client.svc/ProcessQuery", can anybody please let me know what is the solution for this issue.

Thanks,

Bhaskar V