Hi AmitK05,
App Controller will give you web based interface for the creation and operation (e.g. start/stop/checkpoint) etc of virtual machines that are running in either VMM or in Windows Azure.
If you need a single console to view virtual machines that are running in Azure or in VMM then App Controller is likely a good option.
App Controller is also a good option even if you are only using VMM and need a portal to let users create and operate virtual machines.
Without knowing the functionality of your current portal and what you need a self service portal to do, it is a little hard to know whether App Controller can replace your current portal.
It is important to note that App Controller is a Silverlight portal and can only be used on devices that support Silverlight.
Kind Regards,
Richard
This posting is provided "AS IS" with no warranties, and confers no rights.
