Hi Suraj,
When I started with SAP MDM module, i had the same kind of query.
But the SAP MDM Reference guides are great...
Import Manager:http://help.sap.com/saphelp_mdm550/helpdata/en/43/12036df94c3e92e10000000a1553f6/frameset.htm
Console:http://help.sap.com/saphelp_mdm550/helpdata/en/8e/9f9c427055c66ae10000000a155106/frameset.htm
Data Manager:http://help.sap.com/saphelp_gds20/helpdata/EN/43/e0615a82b40a2ee10000000a11466f/frameset.htm
Syndicator: http://help.sap.com/saphelp_mdm550/helpdata/en/6a/70e04fe12f40029035c09bb0f2f5bc/frameset.htm
Regards,