Hi Ajaz,
If I am getting your query correctly, I think you can get the desired output using command ' show vlans brief '. If you need any specific vlans, than you can use match statement with this command and match with vlan name.
This command will show the routing instance , vlan name and active ports/interfaces in that vlan,
labroot@jtac-qfx5100-24q-2p-r2212> show vlans brief
Routing instance VLAN name Tag Interfaces
default-switch default 1 xe-0/1/3.0*
default-switch v10 10 ae0.0
ae1.0
xe-0/1/5.0
default-switch v100 100 ae0.0
Regards,
Ankur
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