Hello Bhipra,
Software Provisioning Manager (SWPM) is a new tool which provides you installation support just like earlier SAPInst.
You can refer the following link for more details:
Software Provisioning Manager 1.0
Also refer to the note: http://www.service.sap.com/sap/support/notes/1680045
This is part of Software Logistics Toolset (SL Toolset). You can find this at SAP service market place:
http://www.service.sap.com/sltoolset ->
Software Logistics Toolset 1.0 ->
[Scroll down the page] Software Provisioning Manager ->
Installing Systems Based on NW 7.1 or Higher-SW Prov.Mgr.1.0
Regards,
Manoj