Hi Rajeev,
Please refer below links for list of BI content Infoproviders,Query list for E-Recruiting. Hope it will be useful to u.!!!
For BW 7 with EHP1:
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/1f/1f9ac6d7b2274ea847992e1ede270f/frameset.htm
For BW7 with EHP2
http://help.sap.com/saphelp_nw70ehp2/helpdata/en/1f/1f9ac6d7b2274ea847992e1ede270f/frameset.htm