Hi Ompal,
What is the controller? Is it V2110 or some physical appliance? I’d recommend to use GUI to go into VNS or Controller menu, then Topologies. With V2110 for example, you will most likely have a ‘physical’ type topology with some IP address and AP registration + management enabled.
Under CLI you can login and type ‘topology’, then ‘show’.
Hope that helps,
Tomasz
