hi Ashwin,
i am able to consume the following oData service according to the steps mentioned in the document. i have consumed it by get method.
http://devgw.ltisap.com:8005/sap/opu/odata/sap/ZEXP_REQ_SRV/EXPREQ_SET
Right now i m trying to consume one oData service for update through mbo. Do you have any document for that?